Tool Categories
Hosting & PaaS
Where to deploy apps for free: builds, bandwidth, sleep rules and what happens when limits hit.
Monitoring & Observability
Uptime checks, error tracking, logs and metrics with free plans and retention limits.
AI & LLM APIs
Hosted models and inference APIs you can call for free, with the real rate limits and credits spelled out.
Newsletters & Email Marketing
Newsletter and email marketing platforms. Compare free subscriber counts, send limits and branding rules.
Transactional Email & APIs
APIs for sending app emails: daily caps, free monthly volume and card requirements.
APIs & Data
Free data and utility APIs: quotas, rate limits, attribution rules and whether commercial use is allowed.
Databases & Data
Free Postgres, SQL, NoSQL and Redis databases with storage, read/write limits and idle behavior.
Screenshots & Docs APIs
Screenshot, PDF and document generation APIs with free credits, concurrency and timeout limits.
AI App Builders
Prompt-to-app builders with free plans. See credit caps, publishing limits and what needs an upgrade.
Auth & Identity
Sign-in and user management services. Compare free monthly active users, SSO and custom domains.
Design & UI
Design, whiteboard and prototyping tools with free plans, editor seats and AI credits.
Forms
Form backends and survey builders with free submission limits, spam protection and integrations.
Messaging & Realtime
Notifications, push and realtime messaging. Compare free message volumes and connection limits.
Storage & Media
File storage, image and video services with free storage, egress and processing credits.
AI Coding Tools
AI editors, agents and assistants you can try without paying, plus what the free plan actually includes.
Analytics
Privacy-friendly and product analytics with free plans, event limits and self-hosting options.
BaaS & Low-code
Backend-as-a-service and low-code platforms for shipping fast, with database, storage and bandwidth caps.
Maps & GEO
Maps, geocoding and routing APIs with monthly free quotas and clear commercial-use rules.
Payments & Billing
Payment processors and billing tools. See fees, tax handling and when a free start gets costly.
Security
Secrets, scanning, bot protection and security tools with free plans for small teams.
Tunneling & Networking
Tunnels, VPNs and private networking for dev and homelabs, with free user and device limits.
Blogging & Comments
Places to publish and talk: blog platforms and comment systems that cost nothing to start.
CMS & Content
Headless and visual CMS tools with free tiers. Compare seats, records, API calls and bandwidth.
DNS & CDN
DNS hosting and content delivery networks, from always-free CDNs to pay-as-you-go edge networks.
Privacy & Compliance
Cookie consent, policies and compliance tools with free plans for small sites.
Search
Search engines and indexing services you can run free: capacity, requests and self-hosting.
