developer-tools products

Bagel is a web-based tool for exploring and visualizing ROS2 bag files (ROSBAGs). It allows developers to inspect recorded robot sensor data and messages without requiring a local ROS installation. The tool is accessible via browser through a hosted interface.

Kolega Code is an open-source command-line interface for interacting with AI coding models. It was built as a cost-conscious alternative to frontier model pricing from major AI providers. The tool is available on GitHub under the kolega-ai organization.

An open source tool that converts a photo of a handwritten alphabet into an installable TTF font file. Users write out alphabet characters, photograph them, and the tool processes the image to generate a usable font. The project is hosted on GitHub and freely available for self-hosting or modification.

filtersql is an open-source library for building SQL WHERE clauses from structured filter inputs. It allows developers to programmatically construct safe, parameterized SQL filter conditions without manual string concatenation. The project is hosted on GitHub and targets backend developers working with SQL databases.

Kero is a native macOS terminal application with built-in Git integration. It was developed as an independent project over a five-day build sprint. The app targets developers who want a macOS-native terminal experience with Git features accessible directly in the interface.

A web-based tool for validating HTTP message signatures according to the HTTP Message Signatures specification. It allows developers to inspect and verify signature headers in HTTP requests and responses. Useful for debugging and testing implementations of the HTTP signing standard.

Cloro.dev provides a web scraping API with support for SERP (search engine results page) data extraction and AI-assisted scraping. It offers a free tier that allows developers to get started without upfront costs. The service is aimed at developers needing structured web data for search and AI workflows.

PyRoboVision is a developer tool focused on computer vision for robotics applications. It appears to integrate artificial intelligence capabilities for use in robotic systems, with potential applications in electric vehicle contexts. The project is hosted on GitHub and targets developers working at the intersection of robotics and AI.

SMTP-probe is an open-source tool for testing and debugging SMTP email server connections. It allows developers to verify SMTP configurations, check server responses, and diagnose email delivery issues. The project is hosted on GitHub and targets frontend and backend developers working with email infrastructure.

Bohay is a developer tool available at bohay.dev. Based on available signals, it targets software developers, though specific features and capabilities are not detailed in the provided information. Users can visit the site directly to explore its functionality.

kdeps is a command-line coding agent that runs locally using llamafile and GGUF model formats. It enables developers to interact with large language models directly from the terminal without relying on external API services. The tool is open source and available on GitHub.

Coypa is a clipboard management tool designed for developers, available as an open-source project on GitHub. It provides a way to store, organize, and access clipboard history. The project is built for command-line or developer-focused workflows.

Openleetcode is an open-source, self-hostable coding challenge platform similar to LeetCode. It allows developers to run their own instance for practicing algorithmic and data structure problems. The project is available on GitHub for community contributions and self-deployment.

canvas-ui is a component library built around HTML Canvas for creative coding and animation-driven interfaces. It provides reusable components that leverage canvas rendering for building interactive, visually dynamic web experiences. The project is open source with nearly 1,000 GitHub stars and focuses on animation and canvas-based UI patterns.

openworker is an open-source worker process designed to execute agentic tasks defined by the OpenAI Agents SDK. It provides a runtime environment for running agent loops locally or on custom infrastructure. The project is maintained by Andrew Ng and targets developers building AI agent pipelines.

CrumbKit is a Chrome extension designed for developers with a focus on privacy. It provides tools to help manage or inspect browser data related to tracking and cookies. The extension falls within the developer tools category and is available via the Chrome Web Store ecosystem.

Biscuit is an open-source code editor built with Python and Tkinter. It provides a lightweight development environment with features such as syntax highlighting, a file explorer, and a built-in terminal. The project is available on GitHub and targets developers looking for a customizable, minimal editor.

An open-source proxy that lets you run Claude Code against alternative AI backends including OpenAI Codex, Kimi, Grok, and Cursor. It intercepts Claude Code's API calls and reroutes them to compatible model providers. Useful for developers who want to use Claude Code's interface with different underlying language models.

Zinda is an experimental caching library designed for FastAPI applications that prioritizes data freshness over raw cache hit rates. It provides a caching layer that can be integrated into FastAPI routes and endpoints. The project is in early stages and available as open source on GitHub.

Kane CLI is a command-line interface tool listed in the developer-tools category. It is designed to assist developers with tasks performed directly from the terminal. Specific features and capabilities are not detailed in the available source information.

Claude-thermos is an open-source tool available on GitHub that integrates with the Claude AI model. It appears to provide a wrapper or utility layer for working with Claude in developer workflows. The project is in early stages with minimal community traction at this time.

5QL is a SQL editor that connects to your database and provides a bidirectional editing experience. It includes a Claude.md-style table interface that allows you to interact with your database schema and data through structured prompts. The tool is designed for developers who want to combine natural language context with direct SQL editing.

A real-time video filter tool with zero-lag processing, built on RVM (Robust Video Matting), Python, OpenCV, and OpenGL. It supports Spout2 for GPU-based texture sharing between applications on Windows. Users can script custom filter logic, making it suitable for developers building live video pipelines.

BDFL is a developer tool available at usebdfl.com. Based on available signals, it is listed under developer tools and was shared on Hacker News. Specific features and capabilities are not detailed in the provided information.