Freemium
PaaS & Edge · Cloud Platforms
Global CDN, DNS, security and edge compute platform.
cdndnsedgesecurity
Browse the complete directory — use filters to narrow down.
PaaS & Edge · Cloud Platforms
Global CDN, DNS, security and edge compute platform.
Color Tools
Fast palette generator with explore, contrast and export tools.
Design Tools · Design & Prototyping
Collaborative interface design tool used across the industry.
Hosting & Collaboration · Git & Version Control
The largest platform for Git hosting, collaboration and CI/CD.
Logs & Metrics · Monitoring & Observability
Open-source visualization and analytics for metrics, logs and traces.
API Clients · API Tools
API platform for building, testing, documenting and sharing APIs.
NoSQL · Database
In-memory data store used for caching, queues and realtime.
Error Tracking · Monitoring & Observability
Error monitoring and tracing for every stack, with clear stack traces.
Serverless & BaaS · Database
Open-source Firebase alternative: Postgres, auth, storage, realtime and functions.
Pipelines & ETL · Data & Analytics
Open-source data integration with 550+ prebuilt connectors.
Wallets & Infrastructure · Web3 & Blockchain
Web3 developer platform — node APIs, enhanced APIs (NFT, tokens), webhooks and monitoring across chains.
NoSQL · Database
AWS fully managed serverless key-value and document database.
Models & LLM APIs · AI for Developers
API access to Claude models with strong coding and reasoning.
Agent & LLM Frameworks · AI for Developers
All-in-one desktop + docker app for chatting with your documents.
API Clients · API Tools
All-in-one API platform for design, debug, mock, test and document.
Authentication · API Tools
Okta's identity platform for authentication and authorization.
Hyperscalers · Cloud Platforms
Amazon Web Services: the largest cloud platform with 200+ services.
Accessibility · Testing
Industry-standard accessibility testing engine and browser tools.
Uptime & Alerting · Monitoring & Observability
Uptime monitoring, incident management and log management in one.
Passwords & IDs · Security
Open-source password manager with a free generator and vault.
E2E & Browser · Testing
Test on real browsers and devices in the cloud.
Error Tracking · Monitoring & Observability
Error monitoring with strong mobile and release health support.
Scheduling & Booking · API Tools
Open-source scheduling infrastructure — Calendly alternative with booking links, teams and an API you can self-host.
Scheduling & Booking · API Tools
The scheduling standard — shareable booking links, round-robin teams, reminders and integrations.