Developer Tools

KE

Keycloak

4.6/5.01 verified review

Free·Open Source·Apache-2.0

Open source identity and access management solution with single sign-on capabilities.

• Completely open source with no commercial licensing fees.
• Native support for OpenID Connect, OAuth 2.0, and SAML 2.0 standards.
• Built-in identity brokering and social login integration.

37.6kstars on GitHub

OP

OpenVibe

4.6/5.01 verified review

Free·Open Source·MIT

Open source desktop application to manage coding agents on an infinite canvas with real terminals.

• 100 percent local execution with zero telemetry.
• Each agent runs in a true terminal powered by xterm.js.
• Infinite canvas powered by Excalidraw for agent fleet management.

5stars on GitHub

SC

Simple Case Converter

4.6/5.01 verified review

Free

Client-side online text case converter for developers and writers

• Fully client-side execution running locally in the browser via JavaScript
• Supports multiple programming cases and editorial styles such as AP, APA, and Chicago
• Completely free access without requiring user registration or account creation

ST

Storybook

4.6/5.01 verified review

Free·Open Source·MIT

Frontend workshop for building, testing, and documenting UI components in isolation.

• Efficient UI development in isolation.
• Rich ecosystem of addons for visual and interaction testing.
• Automated documentation generation from code.

91.4kstars on GitHub

HA

Harbor

4.6/5.01 verified review

Free·Open Source·Apache-2.0

Open source cloud native registry securing containers and artifacts for Kubernetes environments.

• CNCF graduated project with strong production adoption in Kubernetes environments.
• Integrated vulnerability scanning and image security compliance policies.
• Native support for OCI specifications and multiple artifact types including helm charts.

29.6kstars on GitHub

PO

PocketBase

4.5/5.01 verified review

Free

Open source backend in a single file with realtime database and authentication.

• Extremely simple deployment through a single binary executable.
• Embedded SQLite database with real-time query support.
• Built-in web admin dashboard requiring zero extra configuration.

244stars on GitHub

WI

with icons

4.5/5.01 verified review

Free·Open Source·MIT

Free library of over 35,000 SVG, PNG and animated icons across 34 distinct visual styles.

• Completely free MIT license with no sign-up barriers
• Extensive collection spanning 34 distinct visual styles per icon
• Native packages for popular frontend frameworks like React and Vue

6stars on GitHub

LI

LightCMS

4.5/5.01 verified review

Free

A Git-based and Markdown-focused CMS for static site generators.

• Native storage in Markdown files inside GitHub repositories.
• Total absence of database locks or proprietary dependencies.
• Open-source tool suitable for self-hosted deployments.

MD

Md2Docx

4.5/5.01 verified review

Free·Open Source·MIT

Universal Markdown to Word engine for Node.js and modern browsers

• Modular and extensible architecture based on official plugins.
• Client-side execution in browsers without compromising data privacy.
• Native support for mathematical formulas and diagrams.

40stars on GitHub

VE

Vectoys

4.5/5.01 verified review

Free·Open Source·MIT

Open source SVG 3D engine for device mockups and interactive toys on landing pages.

• Pure SVG rendering without WebGL or canvas dependencies.
• Live interactive HTML rendered directly on device screens.
• Open source codebase distributed under the MIT license.

CA

Castov

4.5/5.01 verified review

Free·Open Source·MIT

Fast, 100% client-side developer platform with CLI and MCP server support.

• 100% local browser and CLI execution with zero telemetry.
• Includes a native Model Context Protocol (MCP) server for Cursor and Claude.
• Over 60 interactive developer tools and chainable data pipelines.

1stars on GitHub

NO

Nomoat

4.5/5.01 verified review

Free

Crowdsourced directory of small, specific software worth buying rather than building.

• Open JSON API access to query all software listings programmatically.
• Advanced filters for categories, platforms, longevity, and revenue verification.
• Enriched listings featuring neutral descriptions written independently.