3,030 tools
Free planResearch
CommonMark is a community specification that defines Markdown syntax unambiguously with a comprehensive test suite. It addresses inconsistent Markdown implementations by standardizing how plain-text documents convert to structured HTML across tools and platforms.
Free planCode
Compare JSON is a browser-based semantic JSON diff tool that compares structure and values rather than raw text, highlighting type mismatches, missing keys, and nested changes with key-path context. It targets developers validating API payloads, configs, and fixtures without installing desktop software.
Free planCode
CompileBytes hosts free online compilers and playgrounds for languages including C++20 with GCC 15.3, supporting stdin, concepts, ranges, and live output without local setup.
Free planCode
Compiler Explorer (Godbolt) is an interactive online compiler that shows assembly or intermediate output for C++, Rust, Go, and many other languages as you edit source code. It is widely used for learning compilers, optimizing hot paths, and sharing reproducible compiler URLs.
Free planCode
ComponentKit is a declarative UI framework for iOS maintained in the open source ecosystem originally from Meta, emphasizing composable views and performance for native apps. The documentation site introduces ComponentKit concepts for building responsive iOS interfaces with a React-inspired model.
Free planCode
Composio is an agent integration platform with 1,500+ toolkits, OAuth and trigger handling, SDKs, CLI, and MCP endpoints so coding agents and chat apps can call Gmail, Slack, GitHub, and other SaaS APIs securely. Hobby and Pro tiers meter tool calls and triggers while Enterprise adds SSO, governance, and custom billing.
Free tier unknownCode
Compresr is an LLM context-compression API that takes long context plus a query, keeps answer-bearing tokens, and returns a shorter context to cut token cost and latency while preserving accuracy on public benchmarks. Teams can use Python or TypeScript SDKs, HTTP APIs, playground demos, or on-prem deployment.
Free planData
Computable publishes the open-source Computable GPU Index (CGI), a USD reference price per GPU-hour from a fixed panel of on-demand rental providers. The methodology, data, and code are public so traders, renters, and agents can reproduce every print and consume live values via web charts or MCP.
Free planCode
Conan is an open-source, decentralized package manager for C and C++ that helps teams create, cache, and share native binaries across platforms. The homepage highlights Conan 2.0 workflows for modern C++ dependency management in CI and local development.
Free planDeveloper Tools
Conductor runs parallel coding agents on Mac with optional Conductor Cloud sandboxes, multiplayer workspaces, mobile control, and an API. It orchestrates first-party Claude Code, Codex, Cursor, and OpenCode agents using your subscriptions and keys, with isolated microVMs for long-running cloud jobs.
Free tier unknownCode
Conductor Quantum builds AI-powered software for operating and scaling quantum computers. The company targets quantum control and automation workflows across qubit modalities named on its site, helping labs run and grow quantum hardware programs.
Free planCode
Conferbot is a no-code AI chatbot platform with a drag-and-drop builder, 250+ templates, and models such as OpenAI, Claude, or Gemini. Businesses deploy bots to websites and eight messaging channels with a unified inbox, analytics, and lead capture workflows.
Free planDevOps
ConfigCat is a feature flag and remote configuration service for teams, offering hosted or on-premise deployment, SDK-driven local evaluation, and tiered plans based on config JSON downloads and network traffic. Product docs cover SDKs, integrations, and a public management API for automation.
Free tier unknownDevOps
Confluent Schema Registry, described on Confluent's data compatibility product page, is a central schema repository with a REST interface for Kafka applications. It enforces schema compatibility and validation so streaming data stays consistent across producers and consumers in Confluent Platform.
Free tier unknownResearch
Congruent builds automotive radar designed for end-to-end autonomy, letting teams train with raw radar data—real or synthetic—via a digital twin connected to the vehicle and world model. The platform supports scene augmentation, edge-case testing, and closed-loop evaluation.
Free planCode
Conifer is a local-first AI runtime and routing gateway that sends requests to frontier cloud models, self-hosted weights, or your own hardware through one API key. The site promises no markup on cloud token rates, free local inference, and dynamic query-based routing across editors and terminals including Cursor and VS Code.
Free planCode
ConnectyCube provides chat and calling SDKs for mobile, web, and cross-platform frameworks, marketed for both traditional apps and AI agents that need messaging and voice/video. SDKs cover Flutter, React Native, Web, iOS, and Android with hosted cloud plans on the pricing page.
Free trialCode
Connexun provides News and Text Analysis APIs powered by its B.I.R.B.AL. NLP engine. Developers ingest multilingual headlines and articles from thousands of open-web sources with classification, clustering, ranking, and extractive summarization for media intelligence workflows.
Free planCode
ConsoleX is an AI automation studio for indie builders to turn everyday work into Skills, Agents, and scheduled workflows. The desktop-style app combines multiple models, file uploads, scheduled chats, and pay-as-you-go credits beyond plan limits.
Free tier unknownCode
ConstellationOS is Constellation Space Corp’s ML-native operations platform for satellite fleets, unifying telemetry ingest, link forecasts, and policy-bound orchestration. Operators can start with a 30-day shadow pilot after a discovery call.
Free tier unknownCode
Constitute AI is a minimal product studio site from Scigic advertising tools that give people time back. The public homepage currently highlights a single forming-time experience with a dive-in call to action rather than a full feature catalog.
Free planCode
Consulo is a desktop multi-language IDE with Java and C# support, including Unity framework integration. The project distributes binaries from consulo.io, hosts source on GitHub, and documents plugin development for extending the platform.
Free planCode
Container Registry Service offers a Harbor-based container image registry for individuals and teams, emphasizing private repositories, supply-chain security, and dedicated instances for organizations. Pricing separates a forever-free individual tier from a Dedicated plan for teams with trial signup.
Free planCode
Context7 pulls up-to-date, version-specific library documentation and code examples into AI coding assistants such as Cursor, Claude Code, Codex, and other MCP-compatible tools so generated code matches current APIs.
Showing 720 of 3,030 tools
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