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Easiest way to run mock REST APIs locally — no account required

Curl statistics made simple — visualize HTTP request timing

Turn any OpenAPI spec into a mock API server with validation

100+ handy online tools for developers — self-hostable via Docker

Single-binary CLI to serve files over HTTP right now — written in Rust

Simple and elegant open-source invoicing solution

Subscription management and billing system with tax support

Open-source pricing and billing infrastructure for SaaS

Single sign-on multi-factor portal for web apps

Comprehensive authentication framework for TypeScript

Fancy self-hosted monitoring tool with beautiful UI

Microservices status page that monitors infrastructure and sends alerts

Self-hosted uptime and server hardware monitoring with beautiful visuals

TypeScript framework for building AI agents with memory and tools

Open source email newsletters, easy and reliable

Open-source email platform for transactional and marketing emails

Open-source self-hosted email marketing at a fraction of the cost

Lovely transactional email with tracking and bounce handling

Open-source invoicing solution for individuals and businesses

Lightweight open-source helpdesk and ticketing system

Super lightweight free open-source helpdesk and shared inbox

Open-source help desk and ticketing solution built with Node.js

Realtime kanban board for workgroups, self-hosted Trello alternative

Privacy-focused open-source kanban board with full data control