Open Source Web Development Tools

Alternative toBolt.new

Self-hosted AI app builder for full-stack web prototypes

• 19,848 GitHub stars
• MITLicence MIT

Alternative toAdobe PDF Extract API

Rust-powered PDF parser with smart OCR routing for AI pipelines

• 19,698 GitHub stars
• MITLicence MIT

Alternative toCloudCannon

Git-based content management for static site generators

• 19,440 GitHub stars
• MITLicence MIT
• #CMS

Alternative toPostman

Local-first API client for HTTP, GraphQL, and WebSocket

• 19,338 GitHub stars
• MITLicence MIT

InWeb Development

Build GenLayer intelligent contracts in minutes, not days

• 18,805 GitHub stars
• MITLicence MIT
• #LLM

Alternative toCodeDashboard

Turn any GitHub repo into an interactive architecture diagram

• 18,378 GitHub stars
• MITLicence MIT

Alternative toPix4D

Self-hosted streaming 3D reconstruction from long video

• 18,171 GitHub stars
• Apache-2.0Licence Apache-2.0

Alternative toBrowserbase

AI agent browser with shared Chrome state, zero cost

• 18,122 GitHub stars
• MITLicence MIT
• #AI Agents

Alternative toGoogle Cloud Firestore

JavaScript database that syncs with CouchDB, works offline

• 17,623 GitHub stars
• Apache-2.0Licence Apache-2.0
• #Database

InIT Management

Smart PVR for Usenet and BitTorrent TV fans

• 17,354 GitHub stars
• GPL-3.0Licence GPL-3.0

InWeb Development

Typed errors, DI, and concurrency for TypeScript

• 17,341 GitHub stars
• MITLicence MIT

Alternative toDocuSign

Open source DocuSign alternative with enterprise e-signatures

• 15,488 GitHub stars
• AGPL-3.0Licence AGPL-3.0