184 Developer Tools with Free Tiers You Didn't Know About
I spent the last month reviewing 184 developer tools — each offering genuinely useful free tiers or open-source features that most developers don't know about.
This isn't a list of links. Each tool below has a dedicated deep-dive article with setup guides, features, and real use cases.
Bookmark this. You'll need it.
Table of Contents
- Cloud & Hosting Platforms (18 tools)
- Databases (28 tools)
- DevOps & Infrastructure (16 tools)
- Security & Authentication (13 tools)
- Networking & VPN (5 tools)
- Monitoring & Analytics (17 tools)
- Search & Vector (3 tools)
- Backend & BaaS (4 tools)
- Frontend & Frameworks (22 tools)
- AI & Machine Learning (11 tools)
- Storage & Backup (7 tools)
- CMS & Content Management (2 tools)
- Self-Hosting & Home (9 tools)
- Developer Tools (8 tools)
- Other Tools (21 tools)
Cloud & Hosting Platforms
| Tool | What's Free | Deep Dive |
|---|---|---|
| CapRover | One-Click App Deployment Platform | Read → |
| Cloudflare Workers | Tier — 100K Requests/Day at the Edge With KV, R2, and D1 | Read → |
| Cloudflare Workers AI | API — Run LLMs at the Edge Without Paying OpenAI | Read → |
| Coolify | Self-Hosting Platform for Any App | Read → |
| Coolify | Self-Hosted PaaS — Deploy Apps, Databases, and Services Like Hero... | Read → |
| Deno Deploy | Tier — Run TypeScript at the Edge With Zero Config, 100K Requests... | Read → |
| Deno Deploy | Tier — Deploy Edge Functions Globally in 10 Seconds (No Docker, N... | Read → |
| Deno Deploy | API — Ship Serverless Functions Globally in Seconds | Read → |
| Dokku | Self-Hosting Platform That Replaces Heroku | Read → |
| Fly.io | Tier — Deploy Apps Globally With 3 Shared VMs and 160GB Bandwidth | Read → |
| Fly.io | API — Deploy Docker Apps Globally With 3 VMs Free | Read → |
| Netlify | Tier — 100GB Bandwidth, Serverless Functions, and Instant Deploys | Read → |
| Railway | Tier — Deploy Any Stack With $5 Monthly Credit and One-Click Temp... | Read → |
| Render | Tier — Static Sites, Web Services, and PostgreSQL With Zero DevOp... | Read → |
| Render | API — Deploy Apps and Manage Services Programmatically | Read → |
| Vercel | Tier — Deploy Frontend Apps With Edge Functions, Analytics, and I... | Read → |
| Vercel | Tier — Deploy Websites, Serverless Functions, and Edge APIs Witho... | Read → |
| Vercel | API — Deploy, Manage Domains, and Set Env Vars Programmatically (... | Read → |
Databases
| Tool | What's Free | Deep Dive |
|---|---|---|
| Appwrite | Backend-as-a-Service — Auth, Database, Storage, Functions, and Me... | Read → |
| Appwrite | API — Open-Source Backend With Auth, Database, and Storage | Read → |
| Directus | Self-Hosted Headless CMS — REST + GraphQL API for Any Database | Read → |
| Directus | API — Instant REST and GraphQL for Any SQL Database | Read → |
| Dragonfly | Drop-In Redis Replacement | Read → |
| DuckDB | Analytical Database — Run SQL on CSV, Parquet, and JSON Without a... | Read → |
| MongoDB Atlas | Tier — 512MB Cloud Database With Full API, Search, and Charts | Read → |
| Neon | Postgres — Serverless Database With Branching, Auto-Scaling, and ... | Read → |
| Neon | Tier — Serverless Postgres With Branching, 512 MB Storage, and No... | Read → |
| Notion | API — Build Dashboards, Automate Workflows, and Query Databases P... | Read → |
| Notion | API — Search, Create Pages, and Query Databases Programmatically | Read → |
| Notion | API — Create Pages, Query Databases, and Automate Your Workspace | Read → |
| PlanetScale | Like Experience — Serverless MySQL With Branching, Zero-Downtime ... | Read → |
| PocketBase | Backend in a Single File | Read → |
| PocketBase | Backend — Auth, Database, Realtime, and File Storage in a Single ... | Read → |
| Qdrant | Open-Source Vector Database | Read → |
| Supabase | Postgres — Auth, Storage, Edge Functions, and Realtime for Zero D... | Read → |
| Supabase | Tier — Build Full-Stack Apps with a Postgres Database, Auth, and ... | Read → |
| Supabase | Tier — Build a Full Backend (Database, Auth, Storage, Realtime) W... | Read → |
| SurrealDB | Multi-Model Database for Modern Apps | Read → |
| Turso | Edge SQLite Database | Read → |
| Turso | Tier — Edge SQLite Database With 9GB Storage, Embedded Replicas, ... | Read → |
| Turso | Tier — Run SQLite at the Edge With 9 GB Storage and 500 Databases | Read → |
| Turso | API — Edge SQLite Database With 9GB Storage and 500M Rows Read | Read → |
| Upstash | Redis API — Serverless Key-Value Store With 10K Commands/Day and ... | Read → |
| Upstash | Redis API — Serverless Key-Value Storage Over HTTP | Read → |
| Valkey | Redis Alternative — In-Memory Data Store With Full Redis Compatib... | Read → |
| n8n | Self-Hosted Workflow Automation — Connect APIs, Databases, and AI... | Read → |
DevOps & Infrastructure
| Tool | What's Free | Deep Dive |
|---|---|---|
| Ansible | IT Automation Platform | Read → |
| Ansible | Automation Tool — Configure Servers, Deploy Apps, and Manage Infr... | Read → |
| Caddy | Web Server With Automatic HTTPS | Read → |
| Caddy | Web Server — Automatic HTTPS, Reverse Proxy, and Zero-Config TLS | Read → |
| Docker Hub | Tier — Unlimited Public Repos, Automated Builds, and 200 Pulls Pe... | Read → |
| GitHub Actions | Tier — 2,000 CI/CD Minutes, Matrix Builds, and Reusable Workflows | Read → |
| GitLab | Container Registry, Package Registry, and API — Here's What GitHu... | Read → |
| Gitlab | API — Manage Repos, Pipelines, and Issues Without the UI | Read → |
| Portainer | Docker Management Dashboard | Read → |
| Portainer | Container Management UI — Docker and Kubernetes Dashboard for You... | Read → |
| Terraform | Infrastructure-as-Code Tool — Manage Cloud Resources With Declara... | Read → |
| Traefik | Cloud-Native Reverse Proxy | Read → |
| Traefik | Reverse Proxy — Auto-Discovery, Let's Encrypt, and Load Balancing... | Read → |
| Woodpecker CI | Self-Hosted Pipeline — Lightweight CI/CD With Docker and YAML | Read → |
| k3s | Lightweight Kubernetes Distribution | Read → |
| k3s | Lightweight Kubernetes — Production-Ready Cluster in 30 Seconds | Read → |
Security & Authentication
| Tool | What's Free | Deep Dive |
|---|---|---|
| Auth0 | Tier — Add Login, SSO, and Multi-Factor Auth to Any App Without B... | Read → |
| Authentik | Open-Source Identity Provider | Read → |
| Authentik | Identity Provider — SSO, LDAP, SAML, and OAuth2 for Self-Hosted A... | Read → |
| Clerk | Tier — Drop-In Authentication With 10K Monthly Active Users and P... | Read → |
| Crowdsec | Open-Source Security Engine | Read → |
| Grafbase | GraphQL Backend — Edge-Deployed API With Auth, Caching, and Conne... | Read → |
| Hacker News | API — No Key, No Auth, No Limits | Read → |
| HashiCorp Vault | Secrets Management Tool | Read → |
| Infisical | Open-Source Secret Management Platform | Read → |
| Vaultwarden | Self-Hosted Password Manager | Read → |
| Vaultwarden | Password Manager — Self-Hosted Bitwarden With All Premium Feature... | Read → |
| Zitadel | Open-Source Identity Management Platform | Read → |
| npm Registry | API — Query 2M+ JavaScript Packages Without Authentication | Read → |
Networking & VPN
| Tool | What's Free | Deep Dive |
|---|---|---|
| Pi-hole | Network-Wide Ad Blocker | Read → |
| Pi-hole | Network Ad Blocker — Block Ads on Every Device Without Browser Ex... | Read → |
| Tailscale | Zero-Config VPN That Just Works | Read → |
| WireGuard | Ultra-Fast VPN Protocol | Read → |
| WireGuard | VPN — Modern, Fast, and Dead Simple to Configure | Read → |
Monitoring & Analytics
| Tool | What's Free | Deep Dive |
|---|---|---|
| Cloudflare | API — DNS, Analytics, and CDN Management Without the Dashboard | Read → |
| Grafana | Open-Source Observability Platform | Read → |
| Grafana | API — Build Dashboards and Query Metrics Programmatically | Read → |
| Grafana Cloud | Tier — Metrics, Logs, Traces, and Dashboards Without Running Infr... | Read → |
| Plausible | Privacy-Friendly Web Analytics Tool | Read → |
| Plausible | API — Privacy-Friendly Analytics Without Google | Read → |
| Plausible Analytics | Self-Hosted Option — Privacy-First Web Analytics Without Google | Read → |
| Postman | API — Run Collections and Monitor APIs Programmatically | Read → |
| Prometheus | Open-Source Monitoring System | Read → |
| Prometheus | Monitoring Stack — Metrics, Alerts, and Dashboards for Any Infras... | Read → |
| SendGrid | API — Send 100 Emails Per Day With Templates, Analytics, and Deli... | Read → |
| Sentry | Tier — Track Errors, Performance, and Crashes Across Your Entire ... | Read → |
| Sentry | API — Track Errors and Performance From Code (Not Just the Dashbo... | Read → |
| Umami | Open-Source Web Analytics Alternative | Read → |
| Umami | Analytics Dashboard — Open-Source, Self-Hosted, No Cookies Requir... | Read → |
| Uptime Kuma | Self-Hosted Monitoring Tool | Read → |
| Uptime Kuma | Monitoring Dashboard — Self-Hosted Status Page With Alerts | Read → |
Search & Vector
| Tool | What's Free | Deep Dive |
|---|---|---|
| Meilisearch | Open-Source Search Engine | Read → |
| Meilisearch | Search Engine — Typo-Tolerant, Instant Results, Self-Hosted | Read → |
| Typesense | Open-Source Search Engine Built for Speed | Read → |
Backend & BaaS
| Tool | What's Free | Deep Dive |
|---|---|---|
| Appwrite | Open-Source Backend Platform | Read → |
| Directus | Open-Source Headless CMS | Read → |
| GitHub | GraphQL API — Get Repository Data 10x Faster Than REST | Read → |
| Supabase | API — Build a Full Backend Without Writing a Server | Read → |
Frontend & Frameworks
| Tool | What's Free | Deep Dive |
|---|---|---|
| Anthropic Claude | API Tier — Build AI Apps With the Smartest Model for Coding and A... | Read → |
| Astro | Framework for Content-Driven Websites | Read → |
| Biome | Ultra-Fast Code Formatter and Linter | Read → |
| Bun | Ultra-Fast JavaScript Runtime and Toolkit | Read → |
| Discord | API — Build Bots, Read Messages, and Automate Servers (No Paid Pl... | Read → |
| Flowise AI | Visual LLM Chain Builder | Read → |
| HTTPie | API Testing Tool — And It Beats Postman for Quick Requests | Read → |
| Hono | Ultra-Fast Web Framework for the Edge | Read → |
| Mapbox | Tier — Build Interactive Maps, Geocode Addresses, and Add Navigat... | Read → |
| Notion | API — Build Custom Dashboards and Automate Your Workflow | Read → |
| Ollama | Local LLM Runtime — Run Llama 3, Mistral, and Gemma on Your Machi... | Read → |
| Open WebUI | ChatGPT-Like Interface for Local AI | Read → |
| OpenAI | API Tier — Build ChatGPT Apps, Generate Images, and Use GPT-4o Mi... | Read → |
| OpenAI | Tier API — Build a Chatbot in 10 Lines of Python | Read → |
| OpenStreetMap | API — Build Maps Without Google (No Key, No Billing) | Read → |
| Slack | API — Send Messages, Build Apps, and Automate Your Workspace Prog... | Read → |
| Spotify | API — Search Tracks, Get Audio Features, and Build Playlists Prog... | Read → |
| Stripe | API — Accept Payments, Manage Subscriptions, and Build Checkout i... | Read → |
| Stripe | API (for Testing) — Build Payment Flows Without Spending a Cent | Read → |
| Telegram | Bot API — Send Messages, Build Bots, and Automate Chats Without A... | Read → |
| Twilio | Trial API — Send SMS, Make Calls, and Build Communication Apps Wi... | Read → |
| htmx | Way to Build Modern UIs Without JavaScript | Read → |
AI & Machine Learning
| Tool | What's Free | Deep Dive |
|---|---|---|
| Have I Been Pwned | API — Check If Any Email Was in a Data Breach | Read → |
| Immich | Self-Hosted Google Photos — AI-Powered Photo Backup With Face Rec... | Read → |
| Listmonk | Self-Hosted Newsletter — Send Emails to Millions Without Mailchim... | Read → |
| Nocodb | Open-Source Airtable Alternative | Read → |
| Ollama | Local AI Model Runner | Read → |
| Ollama | API — Run LLMs Locally Without OpenAI or Cloud Costs | Read → |
| Replicate | API — Run AI Models (Stable Diffusion, LLaMA, Whisper) With One A... | Read → |
| Resend | API — Send Beautiful Transactional Emails With React Email Templa... | Read → |
| Resend | API — Send Transactional Emails With React Components (No SMTP, N... | Read → |
| Resend | API — Send Transactional Emails in 3 Lines of Code | Read → |
| VirusTotal | API — Scan Files, URLs, and Domains for Malware (4 Requests/Min) | Read → |
Storage & Backup
| Tool | What's Free | Deep Dive |
|---|---|---|
| BorgBackup | Deduplicating Backup Program | Read → |
| Cloudflare R2 | Tier — S3-Compatible Object Storage With Zero Egress Fees | Read → |
| MinIO | S3-Compatible Object Storage | Read → |
| MinIO | Tier — S3-Compatible Object Storage You Can Self-Host Anywhere | Read → |
| MinIO | API — S3-Compatible Object Storage You Can Self-Host | Read → |
| Nextcloud | Self-Hosted Cloud Storage Platform | Read → |
| Restic | Backup Tool That Actually Works | Read → |
CMS & Content Management
| Tool | What's Free | Deep Dive |
|---|---|---|
| Paperless-ngx | Document Management System | Read → |
| Paperless-ngx | Document Management — OCR, Full-Text Search, and Auto-Tagging for... | Read → |
Self-Hosting & Home
| Tool | What's Free | Deep Dive |
|---|---|---|
| Home Assistant | Smart Home Platform — 2,500+ Integrations, Local Control, and Ful... | Read → |
| Homepage | Self-Hosted Dashboard for Your Services | Read → |
| Immich | Self-Hosted Google Photos Alternative | Read → |
| Jellyfin | Media Server for Movies and TV | Read → |
| Jellyfin | Media Server — Stream Movies, Music, and TV Shows From Your Own S... | Read → |
| NASA | API — Get Mars Rover Photos, Asteroid Data, and Space Imagery Wit... | Read → |
| Nextcloud | Self-Hosted Cloud — Files, Calendar, Contacts, Office, and 400+ A... | Read → |
| Unsplash | API — Get Professional Photos for Any Project (50 Requests/Hour) | Read → |
| Unsplash | API — Search and Download HD Photos Programmatically | Read → |
Developer Tools
| Tool | What's Free | Deep Dive |
|---|---|---|
| Briefer | Open-Source Data Notebook | Read → |
| Excalidraw | Whiteboard for Hand-Drawn Diagrams | Read → |
| Excalidraw | Whiteboard — Draw Diagrams, Wireframes, and Architecture Charts i... | Read → |
| GitHub | API — Search Repos, List Issues, and Automate Your Workflow Witho... | Read → |
| Hoppscotch | Open-Source API Development Platform | Read → |
| Tldraw | Infinite Canvas Drawing Tool | Read → |
| Windmill | Open-Source Developer Workflow Platform | Read → |
| n8n | Open-Source Workflow Automation Platform | Read → |
Other Tools
| Tool | What's Free | Deep Dive |
|---|---|---|
| Algolia | Tier — Add Instant Search to Any App With 10K Records and 10K Req... | Read → |
| Cloudinary | API — Transform, Optimize, and Deliver Images and Videos Without ... | Read → |
| CoinGecko | API — Get Crypto Prices, Market Cap, and Coin Data Without Paying | Read → |
| ExchangeRate API | Tier — Convert 161 Currencies in Real-Time (No Key Needed) | Read → |
| ExchangeRate-API | Endpoint — Get Live Currency Rates Without an API Key | Read → |
| ExchangeRate-API | API — Get Currency Conversion Rates Without an API Key | Read → |
| Gitea | Self-Hosted Git Service | Read → |
| Gitea | Self-Hosted Git Platform — Like GitHub but on Your Own Server | Read → |
| IP-API | API — Get Geolocation for Any IP Address Without an API Key | Read → |
| Libraries.io | API — Track 6M+ Open Source Packages Across 40 Platforms | Read → |
| Linear | API — Manage Issues and Projects From Your Terminal | Read → |
| ORCID | API — Look Up Any Researcher's Publications in Seconds (No Key Ne... | Read → |
| Open-Meteo | Weather API — No Key, No Signup, Real Forecast Data | Read → |
| Open-Meteo | API — Get Weather Data for Any Location Without an API Key | Read → |
| PyPI | API — Get Metadata for Any Python Package (No Key Needed) | Read → |
| Shodan | API — Scan the Internet for Exposed Devices | Read → |
| Spotify | API — Search Tracks, Get Playlists, and Analyze Audio Features (N... | Read → |
| The Internet Archive | API — Search 800B+ Web Pages Programmatically | Read → |
| Wasmer | Registry — Share and Run WebAssembly Packages Like npm for WASM | Read → |
| Wikipedia | API — Query 60M+ Articles in Any Language (No Key, No Limits) | Read → |
| Wikipedia | API — Extract Any Article, Summary, or Image Programmatically | Read → |
What's Next?
I review new tools every week. Follow me to get notified when I add to this list.
Building something with these tools? I'd love to hear about it in the comments.
Recently Added (March 2026)
Homepage — Self-hosted dashboard for all your services. 200+ widgets. GitHub
Paperless-ngx — Document management with OCR. Auto-classify invoices, receipts. GitHub
Jellyfin — Free media server (Plex alternative). Hardware transcoding included. GitHub
Vaultwarden — Self-hosted Bitwarden. All premium features free. 10MB RAM. GitHub
Excalidraw — Virtual whiteboard with hand-drawn aesthetic. Real-time collab. GitHub
Hono — Ultrafast web framework. Runs on Cloudflare Workers, Deno, Bun, Node. GitHub
Drizzle ORM — SQL-like TypeScript ORM. No binary, no code gen. GitHub
htmx — Add interactivity with HTML attributes. No build step. 14KB. GitHub
Astro — Ship zero JavaScript by default. Islands architecture. GitHub
SvelteKit — Full-stack framework. 40% less code than React. GitHub
tRPC — End-to-end type safety. No REST/GraphQL boilerplate. GitHub
Zod — TypeScript schema validation. Runtime + types from one schema. GitHub
Bun — JavaScript runtime 3x faster than Node. Built-in bundler, test runner. GitHub
Turborepo — Monorepo build system. Smart caching = never rebuild twice. GitHub
Listmonk — Self-hosted newsletter. 100K emails for ~$10 via SES. GitHub
Coolify — Self-hosted Heroku. Git push deploy, free SSL, one-click databases. GitHub
Pi-hole — Network-wide ad blocker. Blocks ads on ALL devices. GitHub
Home Assistant — Smart home hub. 2000+ integrations. Local control. GitHub
Plausible — Privacy-first analytics. <1KB script. No cookies. GitHub
Umami — Beautiful web analytics. No tracking. GDPR-compliant. GitHub
Need web scraping or data extraction? Check out my tools on Apify — get structured data from any website in minutes.
Custom solution? Email spinov001@gmail.com — quote in 2 hours.
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