Meilisearch is a search engine that indexes content and exposes it through search, conversational interfaces and APIs. It supports full-text search, semantic search and hybrid search, and can be used on the managed Meilisearch Cloud or self-hosted as an open source engine. Official SDKs are available for several programming languages and frameworks.
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Merklemap is a subdomain and certificate transparency search engine. It collects Certificate Transparency data by live tailing CT logs and indexing certificates, and offers a web interface, an API, and a CLI for searching subdomains and SSL/TLS certificates.
Mockend creates fake REST and GraphQL APIs from a mockend.yml file in a GitHub repository. It generates data with random generators and supports model relations. Writes are not persisted. The documented uses include working without a completed backend and building demos or prototypes. Pricing is per account, with Pro at $29 per month and Business at $99 per month after a 14-day free trial.
myaddr.tools is a minimalist dynamic DNS service. Users claim a subdomain name, receive a secret key, and manage DNS records through an HTTP-based update API, with support for ACME dns-01 challenges for TLS certificates. IP addresses must be updated at least once every 90 days to remain active, and registrations are deleted after 120 days without updates.
A service that provides shareable links to download build artifacts from GitHub Actions builds. Public repositories are accessible by default without login, and links can point to the latest artifact or a particular run. A GitHub App can be installed so downloads for a repository do not share the global API rate limit.
Novu is described as open-source notification and agent communication infrastructure. One API connects AI agents and products to customers across in-app, email, SMS, push, WhatsApp, Slack, Microsoft Teams and Telegram, and an Inbox component can be added to an app. Novu Connect plugs an AI agent into channels such as Slack, Teams, WhatsApp, email and Telegram, starting from templates.
OmniRoute by Cheaper Inference is an open-source AI router that routes requests across providers through one OpenAI-compatible endpoint, with automatic fallback. It accepts OpenAI, Claude, Gemini and Responses API requests at /v1 and ships as a self-hosted gateway with a local dashboard. The catalog covers chat, media, search, local runtimes and cloud agents.
OneCompiler is an online code editor and compiler for writing, running and sharing code in the browser. It supports coding agents, embeddable editor and challenge widgets, and APIs for code execution in 110+ languages.
Posting is an open-source API client that runs in the terminal. It supports building HTTP, GraphQL, and gRPC requests, inspecting responses, and keeping collections in Git alongside code. It is installable via Homebrew with a beta formula.
Pragtical is a free and open source code editor licensed under the MIT license. It runs on Windows, Linux and macOS, and is built on SDL, C and Lua. The editor supports syntax highlighting, multiple cursors and a command palette, with LSP and other features available as plugins, and can be extended via Lua and its C API.
PublicWWW is a source code search engine that searches HTML, JavaScript, CSS and plain text in web page source code, supporting queries such as regex and ccTLDs. It also offers an API and an MCP server for AI assistants.
Qdrant is an open-source vector search engine written in Rust, providing fast and scalable vector similarity search with a convenient API. It supports metadata filters stored in JSON, hybrid search combining dense and sparse vectors, and multivector retrieval. It is available as the Qdrant Vector Search Engine, Qdrant Cloud, and Qdrant Hybrid Cloud.
The React TypeScript Cheatsheet is a cheatsheet for developers using React with TypeScript. It provides an introduction, guidance on typing component props, hooks, class components, defaultProps, forms and events, context, refs, portals, error boundaries, concurrent rendering, and reusable patterns, plus API references for @types/react types such as ComponentProps, CSSProperties, ReactNode, and Ref.
react-spring is an animation library for React that uses spring physics rather than duration and curve parameters. It supports fluid UI and interaction animations, SSR, and runs animations without re-rendering via an imperative API.
RelaGit is a graphical Git client built with SolidJS and Electron, available for Windows, macOS, and Linux. It provides extensible workflow and theme APIs for managing source code, and integrates with GitHub, GitLab, and Codeberg. Downloads are labeled Beta, and macOS 10.14 or later is required.
Reocities is a free host for hand-made websites, offering a subdomain, a file manager, a visual builder and optional tooling. Sites are static, serving HTML, CSS, JavaScript, images, audio and video as uploaded files. It also provides an HTTP API, an MCP server and optional custom domains and visitor translation.
A simple web page for testing APIs. Users specify an HTTP method, URL and parameters and click to send an Ajax request. The page requires a browser with HTML5 support.
Roslyn Quoter is a browser-based tool that parses C# code and generates Roslyn syntax factory calls. It offers options for parse type, parenthesis placement, whitespace preservation, redundant API calls, and ready-to-run output with compilation and diagnostics. The project is open-source on GitHub.
searchcode.com is an MCP server providing structured code intelligence for LLMs, with six specialized tools to analyze, search and retrieve code from public git repositories. It is free during beta with no signup or API key.
Shizuku lets apps use system APIs directly with higher privileges than a shell, without a root shell. It supports adb usage so root-required apps needing only adb permission can reach more users. The project provides documentation to guide users and states that setup involves additional steps such as checking permissions and whether Shizuku is running.
Silex is a free, open-source visual builder for static websites aimed at professional web designers and no-code developers. It is maintained by Silex Labs, a French non-profit, and is a project of the OW2 open-source community. The tool can connect to a CMS or API, including WordPress, Strapi, Squidex and Supabase, and hosting is included. Silex can be used on v3.silex.me with nothing to install, or self-hosted.
Sprite Fusion is an independent software company making tools for game development. Its tilemap editor is a free, web-based level design tool for crafting 2D tilemaps in the browser using any tileset, with auto-tiling, collisions and one-click exports to game engines. The company also offers a pixel art generator, a Pixel Snapper tool and an API.
Strapi is an open-source JavaScript/TypeScript headless CMS. It lets developers design content types in a no-code builder, which turns the content model into REST and GraphQL APIs. It can be hosted on the user's own servers or deployed to Strapi Cloud.
Termible is a subscription service for embedding an actual Linux terminal into a website, letting visitors try a CLI tool, REST API or programming language without installation. It launches Docker-powered containers as users connect, and supports executable code examples, embedded terminals and session recording. The service is in private beta, and plans list free, startup and enterprise tiers with concurrent terminal limits.