110+ vetted tools, platforms, and programs. Free, freemium, and token-earning. Security analysts, builders, creators, nomads — start here.
Unified security platform — SIEM, endpoint detection, file integrity monitoring, vulnerability detection, and compliance dashboards. Deploy on-prem or cloud. Used by governments and enterprises worldwide.
The world’s most widely used open-source web application scanner. Find SQL injection, XSS, CSRF, and hundreds more vulns. Maintained by OWASP. Every security professional has used this.
The standard network protocol analyser. Capture and inspect packets in real time. Diagnose network issues, analyze malware traffic, study protocols. Runs on everything. Free forever.
The industry-standard web app pentesting toolkit. Intercept, modify, and replay HTTP requests. Community edition is free and includes the proxy, scanner basics, and Intruder. Used in every bounty hunt.
The world’s most used penetration testing framework. 2,000+ exploits, auxiliary modules, payloads, encoders, and post-exploitation tools. The backbone of professional red team operations.
The gold standard network scanner. Host discovery, port scanning, OS fingerprinting, version detection, NSE scripting for automation. Free since 1997. Still the first tool you run on any assessment.
High-performance network threat detection engine — IDS, IPS, network security monitoring. Multi-threaded. Used by internet service providers and enterprises at scale. Drop-in Snort replacement.
Open cyber threat intelligence platform. Map threat actors, TTPs, campaigns, indicators, and reports using the STIX2 standard. Connects to MITRE ATT&CK, MISP, and external threat feeds.
Comprehensive security scanner for containers, Kubernetes, IaC, and source code. Finds CVEs, misconfigurations, secrets, and license issues. CI/CD native. The fastest way to secure a pipeline.
Curated list of Unix binaries that can bypass local security restrictions or gain elevated privileges. Each entry has exact commands. Essential for CTFs, OSCP, and red teaming. Community-maintained.
The most comprehensive free pentesting reference. Network, web, cloud, mobile, hardware, physical security — all covered. Active directory attacks, privilege escalation paths, post-exploitation cheatsheets.
Largest public archive of exploits and vulnerable software — maintained by Offensive Security. CVEs, proof-of-concept code, shellcode, papers. The public record of how vulnerabilities actually work.
Run Llama 3, Mistral, Gemma, CodeLlama, and 100+ models locally on your own hardware. One command to pull and run. REST API. No data leaves your machine. The foundation of any private AI stack.
ChatGPT-like interface for local and remote LLMs. Multi-model, multi-user, RAG built in, image generation, voice, function calling. Runs over Ollama or any OpenAI-compatible API. Deploy in Docker in 30 seconds.
The fastest LLM inference in the world — 750+ tokens/second on Llama 3.1, Mixtral, Gemma. Free tier gives generous daily limits. Drop-in OpenAI API replacement. Prototype anything instantly.
Visual builder for LLM workflows — RAG pipelines, agents, chatbots, document Q&A, API integrations. Drag-and-drop nodes. Self-host free or use cloud. Build production AI apps without writing code.
Open-source platform for building AI apps, agents, RAG workflows, and internal copilots. Connect any LLM, any data source, any tool. 200K+ developers. The LangChain alternative that actually ships.
The GitHub of AI — 700,000+ models, 150,000+ datasets, free Spaces for demos. Download and run SOTA models for text, image, audio, video. Transformers library. The entire AI ecosystem in one place.
Self-hosted workflow automation with 400+ integrations. Zapier killer. Build AI agents, webhooks, scheduled jobs, data pipelines. Code when you need it, no-code when you don’t. Self-host free forever.
Open-source observability for LLM apps — traces, metrics, prompt management, evaluations, and dataset management. Know exactly what your AI is doing and why it fails. Used at production scale.
Mistral’s own API — free tier includes Mistral-Small and Mistral-Large. European data sovereignty, OpenAI-compatible endpoint, function calling, JSON mode. The privacy-respecting OpenAI alternative.
AI-powered search with real-time web access and citations. Free tier unlimited for basic search. Combines GPT-4, Claude, and web search. Better than Google for research. Researcher’s daily driver.
Single API endpoint for 100+ LLMs — GPT-4, Claude, Gemini, Llama, Mistral, and more. Several models are completely free. Route to cheapest or fastest. One key, all models. The smart developer’s choice.
Open-source Firebase alternative. Postgres database, authentication, storage, edge functions, realtime subscriptions, and vector search — all in one. Free tier includes 2 projects. Ships production apps fast.
Deploy any frontend in seconds. Free tier: unlimited personal projects, global CDN, preview deployments for every push, serverless functions, Edge Network. The fastest way from code to URL.
Deploy backends, databases, and cron jobs in minutes. Free tier with $5 credit monthly. Postgres, Redis, MySQL, MongoDB — one-click. No devops. Connect GitHub and it deploys on every push.
An entire backend in a single Go binary — SQLite database, authentication, file storage, realtime subscriptions, REST and GraphQL APIs. Ship a full-stack app with zero infrastructure. Download and run.
Open-source product analytics — 1M events/month free. Session recording, feature flags, A/B testing, funnels, cohorts, heatmaps. Self-host or cloud. The only analytics tool that respects developer autonomy.
Run JavaScript, Python, or WASM at the edge — 100,000 requests/day free. KV storage, D1 SQLite database, R2 object storage, AI inference. 300 cities of edge compute for free. The developer cloud.
Lightweight self-hosted Git service. Repos, issue tracking, wiki, pull requests, CI/CD pipelines — all in one small binary. Run your own GitHub on a $5 VPS. Full data sovereignty.
Privacy-respecting Google Analytics replacement. No cookies, GDPR compliant, 1KB script. Shows what matters: traffic, sources, pages, conversions. Self-host free or pay $9/month for cloud.
Visual automation platform connecting 1,500+ apps. Free tier: 1,000 ops/month. Build complex multi-step automations with data manipulation, conditional logic, and error handling — no code required.
The world’s code repository. Free: unlimited public and private repos, GitHub Actions CI/CD (2,000 min/month), GitHub Pages hosting, Codespaces, Copilot trial. Your public repos are your portfolio.
Self-hosted Heroku/Netlify/Vercel alternative. Deploy any app from GitHub, Dockerfile, or Docker Compose. SSL, databases, backups, monitoring — all included. Run it on your own VPS. Full control, zero lock-in.
Share unused internet bandwidth and earn $GRASS tokens. Browser extension or desktop app — runs silently. AI companies pay to route requests through your IP. Passive income from bandwidth you’re not using.
Share your internet connection and earn JumpTokens or cash. Payout via PayPal or JMPT crypto. Businesses use it for web intelligence and content delivery. Works on Windows, Mac, Android, Linux.
By Bright Data (the largest proxy network). Share bandwidth, earn PayPal or Amazon gift cards. Works on any device. Bright Data sells bandwidth access to Fortune 500 companies for web data collection.
Browse the internet and earn $BAT (Basic Attention Token) for viewing privacy-respecting ads. Opt-in, anonymous, and you control how much you see. Withdraw to Gemini or keep in the browser wallet.
Decentralised search engine — earn $PRE tokens for every search. 8,000+ node operators run the network. Uses Google, Bing, and other sources privately. Replace your daily search engine and earn daily.
Rent your GPU to the Render Network and earn $RNDR tokens. Clients use it for 3D rendering, AI inference, and visual effects. The more GPU power you contribute, the more you earn. Passive GPU income.
Decentralised cloud marketplace. Providers: list your servers and earn $AKT. Tenants: deploy at 85% less than AWS. Ideal for spare VPS or home server capacity. Kubernetes-compatible. Open-source.
Deploy a Helium hotspot to provide LoRaWAN or 5G coverage and earn $HNT + $IOT/$MOBILE tokens. IoT devices, sensors, and mobile users pay for network access. Physical infrastructure = passive yield.
Earn $NODL by running the Nodle app on your smartphone. Your phone shares Bluetooth Low Energy connectivity — helping locate IoT devices and enabling smart city infrastructure. Truly passive from your pocket.
Store data for the decentralised web and earn $FIL tokens. Storage providers rent disk space to the Filecoin network. IPFS is the underlying protocol used by NFT metadata, Web3 apps, and archivists worldwide.
Watch short educational videos about new crypto projects and earn free tokens — $10–$50 per course. 100% free. Coinbase pays for your attention. Learn the ecosystem and build a bag at the same time.
Browser-based hacking labs with guided learning paths — no setup required. Free tier includes dozens of rooms. Paths: Pre-Security, SOC Level 1, Junior Pentester, CompTIA Security+. 7M+ users. Start here.
The world’s most comprehensive free web security training. 250+ labs covering SQL injection, XSS, SSRF, XXE, OAuth, CORS, CSRF, and more. Made by the creators of Burp Suite. Earn the BSCP certification.
Elite hacking practice platform. Free access to retired machines and Starting Point labs. Pro Labs simulate real enterprise environments. CPTS and CBBH certifications rival OSCP in employer recognition.
Google-backed professional certificates in Cybersecurity, IT Support, Data Analytics, UX Design, Project Management, and more. Audit free on Coursera. Completes in 3-6 months. Recognised by 150+ employers.
100% free IBM-issued certifications in AI, cybersecurity, cloud computing, data science, and software engineering. Digital badges shareable on LinkedIn. Courses built by IBM engineers and researchers.
3,000 hours of free coding curriculum with certifications in Responsive Web Design, JavaScript, Python, Data Analysis, Machine Learning, and Security. 12 free certifications. No paywalls. 10M+ users.
The complete MIT curriculum — free. 2,500+ courses in computer science, AI, mathematics, physics, economics. Full lecture videos, problem sets, exams with solutions. MIT-level education for $0.
Audit 10,000+ courses from Stanford, DeepLearning.AI, Google, IBM, and 300+ universities — completely free. Pay only for the certificate. Andrew Ng’s Machine Learning Specialization, Deep Learning, etc.
Free cybersecurity courses from SANS Institute — the world’s most trusted security training organisation. Covers OS security, networking, and system administration foundations. Gateway to GIAC certifications.
Free official Android development training by Google. Kotlin fundamentals to Jetpack Compose, architecture, testing, and publishing. Earn Google Associate Android Developer certification upon completion.
Brands pay $50–200 per UGC (user-generated content) video. Apply as a creator, get paid to make authentic product videos for social ads. No follower count needed — just good creative instincts and a phone.
Influencer marketing platform where brands connect with creators. Middleman angle: sign up as an agency — represent other creators, take 10-20% commission. Manage multiple creator accounts from one dashboard.
Enterprise influencer marketing platform. As an independent campaign manager, use Aspire to source creators, manage briefs, track deliverables, and report ROI to brands. The tool agencies use — now accessible solo.
Whitelisted collaboration platform connecting DTC brands with creators. Brands grant whitelisting permission so you can run their paid ads. Creators get paid per post + ad spend bonus. High-value deals.
Creator management software used by DTC brands. As a creator manager or agent, use Grin to manage your creator roster, automate outreach, track campaign performance, and generate reports for clients.
B2B creator sponsorship platform. Set your media kit, packages, and pricing. Brands discover and book you directly. Newsletter, podcast, YouTube, LinkedIn — any format. Professional sponsorship storefront for free.
Newsletter platform with a built-in ad network. Earn $1-3 per subscriber you send to partner newsletters through Boosts. Recommend other newsletters to your list and earn each time someone subscribes.
Email platform built for creators. Free up to 10,000 subscribers. Creator Network lets you recommend other creators and earn cross-subscriptions. Paid newsletter, digital products, courses — all built in.
AI-powered influencer marketing platform. Chrome extension searches influencers on any website. Position yourself as an influencer marketing consultant — charge $2,000-8,000/month to manage campaigns for brands.
Self-serve marketplace where creators apply to brand campaigns. Micro and nano influencers earn $50-500 per post or receive free products. 1,000 follower minimum on most platforms. Apply to multiple campaigns simultaneously.
The only major freelance platform with 0% commission. Keep 100% of what you earn. Portfolio, proposals, contracts, invoicing all included. Quality clients — tech startups, funded companies. Invite-favoured but open.
Decentralised talent network — 0% fees for freelancers. Brands pay platform fees, not you. Earn $BTRST governance tokens for contributing, referring, and helping the network grow. Fortune 500 clients.
Vetted remote developer platform. Pass their technical screen and get matched to pre-screened remote jobs. Senior roles: $80-200/hour. Companies include Spotify, Shopify, and funded startups. High signal, low noise.
The top 3% talent network. Brutal screening (5 stages) but premium rates — $100-300/hour. Once accepted, access to JPMorgan, Airbnb, and Fortune 500 engagements. Best platform for senior-level freelancers.
Earn $40-200/hour helping developers 1-on-1 through video calls, code review, and project mentoring. Set your own rates. Senior devs can earn $5,000+/month part-time. Knowledge is currency here.
Strong European freelance marketplace — especially UK and Germany. Hourlies (packaged services) model. Lower competition than Fiverr. Tech, design, marketing, writing. Quick payment via PayPal or bank transfer.
Europe’s leading B2B freelance marketplace. Strong in France, Germany, Spain, and Benelux. Senior-skewed clientele — higher average daily rates. Transparent pricing, GDPR-compliant. The Toptal of Europe.
Established freelance marketplace with milestone-based billing. WorkRooms for project management, SafePay escrow protection, team accounts. Lower competition than Upwork in many niches. Strong for long-term engagements.
Global payroll and contractor platform. Free to use as a freelancer — generate contracts, issue invoices, receive payments in 120+ currencies or crypto. Used by remote workers in 150+ countries. Deel Shield protects your contractor status.
60,000+ hosts in 170+ countries offering accommodation and food for 4-5 hours of volunteer work per day. Farms, hostels, schools, eco-projects, families. Travel the world at near-zero cost. Skills over money.
The original remote job board by Pieter Levels. 100% remote-only positions — no hybrid. Tech, design, marketing, writing, finance. Live salary stats, location requirements filter. 100,000+ remote workers use this daily.
The largest remote work community — 4.5M monthly visitors. Categories: programming, design, DevOps, customer support, sales, marketing. Basecamp’s platform. High signal, quality job listings from serious companies.
Data on 1,000+ cities — cost of living, internet speed, safety, weather, nomad-friendliness. Built by Pieter Levels. Free tier includes city scores. Community of 10,000+ digital nomads. The nomad bible.
Curated remote job board with a 60,000+ newsletter subscriber community. Only quality remote-first companies. Software, design, marketing, customer success, finance. Weekly job digest straight to email.
Hand-curated remote job listings — every posting is reviewed before it goes live. Lower volume, higher quality. Tech, marketing, customer support, management. No scraped job spam. Apply with confidence.
Work exchange network strong in organic farms, ranches, permaculture projects, sailing boats, and eco-lodges worldwide. Food and accommodation in exchange for 4-6 hours daily. Great for agricultural and sailing placements.
Pet-sit in exchange for free accommodation — 130+ countries. Mansions, apartments, farms, cottages. Zero money changes hands. Hosts get pet care. You get free housing. Annual membership pays for itself in one sit.
UN Volunteers programme — deploy with UN agencies in 130+ countries. Living allowance, accommodation, airfare, health insurance provided. Assignments in development, humanitarian, and peacekeeping operations. High-impact, fully funded.
Social media graphics, presentations, logos, videos, docs — all from a browser. Free tier is genuinely powerful: 250,000+ templates, 1M+ elements, background remover, Magic Write AI. The non-designer’s design suite.
The industry-standard UI design tool. Free tier: 3 projects, unlimited collaborators, unlimited files in drafts, FigJam. Real-time collaboration, component libraries, auto-layout, prototyping. Every designer uses Figma.
Virtual whiteboard for hand-drawn looking diagrams and wireframes. No account needed. Real-time collaboration, infinite canvas, export to PNG/SVG. The best tool for quick system diagrams and workshop sessions.
Open-source design tool — UI/UX, prototyping, design systems. Self-host for full data sovereignty or use their cloud free. SVG-native, developer-friendly. The Figma alternative that you actually own.
The open-source standard for video recording and live streaming. Used by every major streamer and content creator. Scene switching, multi-source capture, filters, NDI, virtual camera output. Professional results at zero cost.
Professional open-source video editor. Multi-track timeline, effects library, audio mixer, proxy editing for 4K, keyframe animation, and motion tracking. Free forever. The premiere-class editor without the Adobe tax.
The same tool used on Hollywood films — free. Colour grading, editing, visual effects, audio production (Fairlight), and motion graphics (Fusion) all in one. Free version has more features than most paid editors.
The GNU Image Manipulation Program. Full-featured photo editing and graphic design — layers, filters, selection tools, paths, scripts. Photoshop-level capability at zero cost. 25+ years of development behind it.
Professional vector graphics editor. SVG-native, full Bézier curves, node editing, text tools, extensions ecosystem. Logos, illustrations, icons, UI assets. The Illustrator alternative that costs nothing.
The free audio editor used by podcasters, musicians, and broadcasters worldwide. Multi-track recording and editing, noise reduction, compression, EQ, pitch shifting, and 30+ effects. Cross-platform. Zero cost forever.
Self-hosted Dropbox + Google Docs + Calendar + Contacts + Video calls. Run your own cloud on any server. GDPR compliant, end-to-end encrypted, 300+ apps in the app store. Full Google Workspace replacement for free.
Business intelligence tool anyone can use. SQL editor, drag-and-drop dashboards, automated reports, alerts. Self-host free. Connect to Postgres, MySQL, BigQuery, MongoDB, and 20+ sources. Make your data talk.
The open-source observability platform. Beautiful dashboards for metrics, logs, traces, and alerts. Connects to Prometheus, InfluxDB, Elasticsearch, MySQL, and 100+ data sources. Used from indie hackers to NASA.
Open-source Calendly alternative. Unlimited event types, team scheduling, workflows, payments, embeds, Zapier integration. Free tier is generous — more than enough for freelancers and small teams. Self-host for full control.
Open-source customer engagement platform. Live chat, email, WhatsApp, Twitter, Facebook — all in one inbox. Canned responses, team assignment, CSAT reports. Self-host free or cloud from $19/month. Intercom at 1/10th the price.
Open-source survey and user research platform. In-app surveys, NPS, CSAT, product-market fit surveys, link surveys. Self-host free. Typeform replacement without the $89/month bill. Privacy-first and GDPR ready.
Simple, fast, privacy-focused analytics. No cookies, GDPR compliant, open source. Cloud free up to 100K monthly events. Self-host on any Postgres database. Clean dashboard, real-time data, custom events.
Self-hosted email newsletter and mailing list manager. Unlimited subscribers, unlimited campaigns — you only pay for an SMTP service (AWS SES: $0.10 per 1,000 emails). Mailchimp at 99% less cost. Privacy-owned.
Open-source marketing automation — email campaigns, lead scoring, segmentation, landing pages, CRM integration, multi-channel campaigns. HubSpot equivalent at zero cost. Self-host and own your marketing stack.
Build internal tools, dashboards, CRUD apps, and admin panels visually. Connect to any database or API, drag-and-drop UI, JavaScript for logic. Retool at zero cost. The fastest way to build an operations dashboard.
The world’s largest bug bounty platform. Programs from Apple, Google, Microsoft, DoD, Twitter, and 3,000+ organisations. Average bounty $979. Top researchers earn $1M+/year. Free to join — skill is the only requirement.
Second-largest bug bounty platform. Crowdsourced penetration testing programmes, vulnerability disclosure programs (VDP), and bug bounties. Access to programs from Tesla, Mastercard, Atlassian, and OpenAI.
Europe’s leading bug bounty platform. Programs from Audi, ING Bank, Orange, European Parliament, and 500+ European companies. GDPR-compliant. Often less competition than US platforms — better odds for EU-targeting researchers.
French-born global bug bounty platform. 25,000+ ethical hackers, programs from Air France, Airbus, Société Générale. Strong in financial services and critical infrastructure. Lower competition, consistent payouts.
The leading Web3 bug bounty platform. Smart contract vulnerabilities, DeFi protocol bugs, blockchain security. Bounties range from $1,000 to $10,000,000. The highest single bounty ever paid ($10M by Wormhole). Web3 security pays.
Train the skills needed for bug bounty — secure code review, common vulnerability patterns, OWASP Top 10 hands-on labs. Build a foundation before hitting live programs. Many labs are free. Stack with TryHackMe.
Security research community and public vulnerability database. Submit your finds for public credit, build your researcher reputation, and document disclosed vulnerabilities. CVE credits, researcher profiles, public acknowledgements.
Hands-on web application security labs specifically designed to build bug bounty skills. Real vulnerable web applications. Free tier has solid coverage of SQLi, XSS, and LFI. Badge system tracks your expertise publicly.
Chinese Shodan equivalent — search exposed services, devices, and vulnerabilities across the internet. Free tier with 10,000 results/month. Powerful for OSINT, recon, and finding targets in bug bounty scope. Underused in the West.
The gateway to Ethereum and EVM-compatible chains. Browser extension + mobile wallet. Connect to DeFi protocols, NFT marketplaces, DAOs, and Web3 apps. Hardware wallet support. 30 million monthly users. The standard.
The largest decentralised exchange — $2T+ volume traded. Swap any ERC-20 token without a centralised intermediary. Provide liquidity to earn trading fees. Open protocol, self-custodial. The DeFi primitive everything is built on.
The definitive DeFi analytics platform. Track Total Value Locked across 3,000+ protocols and 200+ chains. Yield rankings, bridge volumes, stablecoin flows, DEX volumes. No token, no agenda — just data. Researchers use this daily.
Query blockchain data with SQL — Ethereum, Solana, Bitcoin, Polygon, BNB Chain, and more. Build dashboards, track whale wallets, analyse protocol behaviour, monitor token flows. Public queries and dashboards are free. The Bloomberg terminal for Web3.
The Ethereum block explorer. Verify contracts, track transactions, read token holders, analyse MEV, check wallet balances. Free API with 5 calls/second. Polygonscan, BscScan, Arbiscan all run the same codebase.
The Ethereum development environment for professionals. Compile, test, debug, and deploy smart contracts. Local Ethereum network, Hardhat console (console.log in Solidity), rich plugin ecosystem. The Truffle successor that everyone uses now.
Web3 developer platform — blockchain APIs, node infrastructure, NFT APIs, token APIs, Webhooks, and enhanced APIs for Ethereum, Polygon, Solana, and more. Free tier: 300M compute units/month. Used by OpenSea, Aave, Adobe.
The largest NFT marketplace — free to create a collection and list. Lazy minting means no gas until sale. Earn royalties (2.5-10%) on every secondary sale perpetually. Art, photography, music, gaming items. Creator-royalty income.
Track 25,000+ crypto assets. Free price alerts, portfolio tracker, and exchange rankings. CMC Earn: complete quizzes about new projects and earn free tokens — similar to Coinbase Earn. Stack with every other earn program.
The largest decentralised lending protocol — $15B+ TVL. Deposit crypto assets to earn yield. Borrow against collateral. Flash loans. No KYC, non-custodial, transparent rates. Supply USDC, ETH, WBTC and earn real yield on-chain.
The largest marketplace for buying and selling AI prompts — ChatGPT, Midjourney, DALL-E, Stable Diffusion, Gemini. Sell your prompts for $1.99–$9.99. Keep 80% of every sale. Top sellers earn $3,000+/month from prompts alone.
The fastest-growing category on Fiverr — AI content, AI art, AI video, AI voice, ChatGPT bots, automation. Top AI gigs earn $10,000+/month. No coding needed for many. Your Ollama setup + a Fiverr gig = income.
Upload AI-generated images and earn royalties every time someone downloads them. Shutterstock now accepts AI-generated content with disclosure. Earn $0.25–$2.85 per download. Upload 1,000 images once, earn monthly forever.
Adobe accepts AI-generated images with disclosure — 33% royalty on every sale. Premium customers, premium prices. Adobe Stock buyers are agencies and professionals paying $30-80/image. Higher per-download rate than Shutterstock.
Create and sell Notion templates — AI prompt libraries, project management systems, life OS, business trackers. Sell on Gumroad, Etsy, or your own site. Top creators earn $5,000–$50,000/month from templates. Zero marginal cost per sale.
The largest community for Stable Diffusion models, LoRAs, and AI art. Share models you’ve trained and earn Buzz tokens (redeemable for compute). Community of 5M+. Build reputation as a model trainer — consulting follows.
Create AI avatar videos from text — no camera, no studio. Free tier: 3 minutes/month. Sell AI video production services to businesses on Fiverr or directly. Explainer videos, training content, product demos — $100-1000/video.
Best-in-class AI voice generation and cloning. Free tier: 10,000 chars/month. Sell AI voiceover services for ads, audiobooks, YouTube, podcasts, e-learning. Professional voiceover rates: $200-2000/hour of audio. AI cuts production to minutes.
Best quality AI image generation via Discord. Sell prints on Redbubble, Society6, Etsy. License images on Shutterstock/Adobe. Create branding, album art, book covers as a service. Print-on-demand + AI art = passive income.
The best personal knowledge base — local Markdown files, bidirectional links, graph view, 1,000+ community plugins. Free for personal use, offline-first. Your notes are yours. Build a Zettelkasten, a second brain, a research database. The knowledge OS.
Wiki + notes + databases + project management + AI writing all in one. Free tier is generous — unlimited pages, up to 10 guests. Build your business OS: CRM, project tracker, knowledge base, SOPs, client portal. Notion AI included.
Open-source, privacy-first knowledge base. Outline-based, bidirectional links, journal-first. All data stored locally in Markdown and Org-mode. No account, no cloud required. The open-source Roam Research alternative.
The gold standard spaced repetition flashcard app. Science-backed algorithm ensures you review cards at the optimal moment before you forget. Used by medical students, language learners, security researchers. Decks for everything. Free on desktop.
Mozilla’s open-source email client. Multiple accounts, powerful filters, end-to-end encryption (OpenPGP), calendar, task manager, RSS reader. No surveillance, no data collection. The privacy-respecting professional email suite.
The best free password manager — end-to-end encrypted, open source, cross-platform. Unlimited passwords on unlimited devices free. Self-host for total control. Safer than LastPass, cheaper than 1Password, better than your browser’s built-in.
End-to-end encrypted note-taking that lasts a lifetime. Free tier: unlimited notes, 5 extensions, sync across devices. Built to last — no VC funding, sustainable model, open source. Write privately, sync securely, own your data forever.
The complete free Office suite — Writer (Word), Calc (Excel), Impress (PowerPoint), Base (Access), Draw, Math. Full MS Office compatibility. Self-contained, no subscription, no cloud requirement. 200M+ downloads. Zero Microsoft tax.
Google’s own keyword research tool — completely free with a Google Ads account (no spend required). Search volume, competition, bid estimates, keyword ideas. The only keyword tool powered by Google’s actual search data. First stop for any SEO project.
End-to-end encrypted email (ProtonMail), VPN (ProtonVPN — unlimited free), cloud storage (Proton Drive 1GB free), calendar. Swiss jurisdiction, zero-knowledge, open source. The sovereign digital identity stack. Replace Gmail, Google Drive, and your VPN.
Community of 100,000+ entrepreneurs building profitable products. Transparent revenue reports — see how founders are actually making money. Forums, product pages, meetups, podcasts. The most honest business community on the internet.
Launch your product to 1M+ tech enthusiasts. Free to submit. Top launch of the day can drive 5,000-50,000 visitors and convert to real users. Used to launch Notion, Figma, Superhuman, and thousands of SaaS products.
The highest-signal tech community. 5M monthly readers. “Show HN” post: share your project and get direct feedback from engineers, investors, and founders. Top Show HN posts drive massive organic traffic. Quality over quantity always.
Build a community around your product, brand, or interest — free. Unlimited servers, text channels, voice, video, bots, and integrations. All major crypto, AI, gaming, and developer communities live on Discord. Monetise via Server Subscriptions or Nitro boosts.
Build a newsletter and monetise with paid subscriptions — Substack takes 10% only when you earn. Free to start, keep 90%. Recommendations network grows your list automatically. 35M+ active readers across the platform.
Open-source publishing platform with built-in memberships, subscriptions, newsletters, and a native SEO architecture. Self-host free (no platform cut) or use Ghost.io. 0% transaction fees vs Substack’s 10%. The creator’s own property.
2B+ monthly page views across 100,000+ communities. Create a subreddit around your niche — free. Moderator tools, flair, awards, community chat. Reddit Contributor Programme pays top creators. Niche subreddits are the highest-intent audiences on the internet.
1B+ professionals. LinkedIn Creator mode: newsletters, live video, carousels. LinkedIn Accelerate program. Organic reach still far better than Instagram or Twitter. B2B leads, consulting clients, speaking gigs — LinkedIn posts convert to business.
Sell ebooks, courses, templates, plugins, art, music, and software. 10% flat fee only when you earn. Free to start, no monthly cost. 80,000+ creators earn on Gumroad. Used by writers, developers, designers, researchers selling knowledge directly.
Federated, decentralised, end-to-end encrypted communication. Bridge to Slack, Discord, IRC, Telegram. Self-host your own homeserver for full sovereignty. Used by the German government, French military, and Mozilla. The sovereign team communication stack.