1,919 tools
Free tier unknownSoftware & utilities
Community Phone provides landline-style home and business phone service that works without home internet, using a cellular base station. Plans cover seniors, caregivers monitoring loved ones, and business lines with spam blocking, voicemail, and U.S.-based support.
Free planSoftware & utilities
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 planSoftware & utilities
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 tier unknownSoftware & utilities
CompUp is a compensation management platform for planning cycles, salary structures, candidate offers, total rewards statements, and analytics. It helps HR and finance teams execute reward strategies across currencies and countries with bias identification and compliance-oriented workflows.
Free tier unknownSoftware & utilities
Environmental professionals review traceable claims while Compyle handles desk research such as aerials, Sanborn maps, directories, and regulatory records.
Free planSoftware & utilities
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 tier unknownSoftware & utilities
Condor Energy is an operating system for industrial, retail, and data-center energy buyers to monitor consumption, forecast costs, and execute hedges. Dashboards unify meters, PPAs, onsite solar and storage, and market data so teams optimize procurement and report board-ready risk views.
Free tier unknownSoftware & utilities
Confident LIMS is a cloud laboratory information management system for high-throughput analytical testing labs. It combines configurable workflows, client portals, and compliance tooling so technicians, directors, and client networks run samples, reporting, and billing from one platform across cannabis, food, environmental, and other industries.
Free tier unknownSoftware & utilities
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 unknownSoftware & utilities
Confreaks provides conference filming, live streaming, and post-production services for technical events, publishing talk videos for communities including Elixir conferences. The official site markets professional A/V production for meetups and multi-track conferences rather than a downloadable app.
Free tier unknownSoftware & utilities
Connected Papers is a visual literature discovery tool that builds graph maps of academic papers related to a seed publication. Researchers use it to explore relevant work in a field without manually chaining citations from one paper to the next.
Free planSoftware & utilities
Connections Hint publishes daily NYT Connections puzzle hints and full answers with a searchable archive of past games. Visitors can toggle hint or answer modes, pick puzzle dates, and review grouping strategies for the word-association game.
Free planSoftware & utilities
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 planSoftware & utilities
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.
No free planSoftware & utilities
Content Cloud delivers finished photo and video shoots through branded, no-login client galleries. Creators upload mixed media, share a secure link with optional passwords or expiry, and track client favorites, downloads, and basic analytics in one place.
Free planSoftware & utilities
ContentFries turns one long recording into a batch of on-brand assets: captioned clips, quote posts, carousels, thumbnails, and blog drafts. Credits power workflows across workspaces, with subscriptions for monthly capacity and optional permanent credit packs.
Free planSoftware & utilities
Continuwuity is a community-driven Matrix homeserver implementation focused on performance and lightweight deployment. The project offers documentation, Forgejo development, partnered hosting guidance, and Matrix interoperability resources for admins.
Free planSoftware & utilities
Converse.js is an open-source web XMPP chat client you can embed or run standalone. It supports direct messages, group chats, OMEMO encryption, multi-language UI, plugins, and deployment modes from fullscreen apps to embedded widgets.
Free planSoftware & utilities
Conveyor is a Visual Studio extension that exposes IIS Express apps to other devices on the network or over the internet via tunneling, fixing common 400 Bad Request issues during remote testing. Paid tiers add internet tunneling and Pro features beyond the free local sharing plan.
Free planSoftware & utilities
CookCLI is the command-line companion to Cooklang, a plain-text recipe format. It generates shopping lists, searches recipes, imports web pages into .cook files, serves a local web UI, builds static sites, and exposes an HTTP API for integrations.
Free to startSoftware & utilities
Coral by Vox Media is open-source commenting software for publishers. It adds moderation tools, mobile-friendly threads, and privacy-first hosting on your site—without ads or trackers—so journalists and community teams can host discussions they control.
Free planSoftware & utilities
It offers SDK and direct proxy URL usage, unlimited requests on paid tiers, caching, and global infrastructure for production web clients.
Free planSoftware & utilities
Designers add Couch tags to markup to make regions editable while keeping front-end HTML intact, with a simplified admin panel clients can use without learning PHP.
Free planSoftware & utilities
Apache CouchDB is a document database with HTTP/JSON APIs, multi-primary replication, and offline-friendly sync from clusters down to mobile devices. The Apache project distributes open-source releases emphasizing reliability and seamless replication topologies.
Showing 600 of 1,919 tools
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