Free tier

Buildkite

Buildkite is a CI/CD platform that runs pipelines on self-hosted or Buildkite-hosted agents. It includes workflow controls such as dynamic pipelines, wait steps, block steps, trigger steps, conditiona...

Burner Mail

Burner Mail is an email privacy service that generates burner email addresses and forwards messages to a personal inbox. It works through a browser extension and web application, where users can creat...

Buttondown

Buttondown is a hosted email newsletter platform for creating, sending, and managing mailing lists. It provides a markdown or rich text editor, custom-domain sending, hosted newsletter archives, paid ...

Bytebase

Bytebase is a database governance platform for managing database change, access, and compliance across major database types and environments. It supports self-hosted deployment and a cloud service, wi...

Cacher

Cacher is a code snippet organizer with desktop apps, a web app, and editor integrations for creating, storing, syncing, and sharing code snippets. It supports public and private snippets, color-coded...

Cal.com

Cal.com is a scheduling platform for online bookings that lets users publish booking links, connect calendars, set availability rules, and manage meeting types from a web app. The product also include...

Calendar Icons Generator is a web app that creates a full year of calendar-themed icons from a single icon design. The user defines colors, fonts, date formats, header settings, and other layout optio...

Calendly

Calendly is an online appointment scheduling platform that connects up to six calendars, exposes real-time availability, and lets users publish booking links for invitees. It supports configurable ava...

cally.com

cally.com is a group event scheduling service that lets users create an event, suggest dates and locations, and invite participants to respond. The workflow shown on the site is organized into planning, responding, and finalizing an event.

Canopy API

Canopy API is an API service for retrieving Amazon product data, including product titles, descriptions, pricing, sales estimates, reviews, and search results. It exposes the data through REST, GraphQL, MCP, and Skills for LLMs, and includes documentation and example repositories for integration.

Canva

Canva is an all-in-one visual design platform for creating digital and print content. It combines a drag-and-drop editor with templates, stock assets, collaboration tools, and AI-powered features to help individuals, teams, and organizations produce polished designs quickly.

Canva Mockups

Canva Mockups is a browser-based mockup generator inside Canva that lets users place images into device, print, apparel, packaging, and other scene templates. It supports mockups created from photos, template-based editing, and export to common formats such as JPG, PNG, PDF, SVG, and PPTX.

Catalyst by Zoho

Catalyst by Zoho is a full-stack cloud development platform for building, testing, hosting, deploying, and optimizing applications. It provides platform-as-a-service capabilities together with backend...

cDox

cDox is a web-based document editor that combines pages and spreadsheets in one product. It supports writing pages, building spreadsheets, real-time collaboration, public sharing links, Markdown expor...

Cerbos Hub is the managed control plane for Cerbos authorization. It coordinates policy administration for Cerbos PDPs and Synapse, letting teams write, test, validate, deploy, and audit authorization policies across apps, APIs, services, workloads, and AI systems.

Chanty

Chanty is a team communication and collaboration platform with chat, voice and video calls, task management, file sharing, and integrations. It supports unlimited public and private chats, unlimited a...

ChatGPT

ChatGPT is an AI chatbot from OpenAI designed to help people discover information, learn new topics, and create content. It supports a broad range of tasks including writing, brainstorming, coding, data analysis, image understanding, and web-based assistance.

Checkbot

Checkbot is a Chrome extension that crawls websites and runs SEO, speed, and security checks across hundreds of pages at once. It reports issues such as broken links, duplicate titles, invalid HTML, insecure pages, redirect chains, mixed content, and other web best-practice violations.

Checkly

Checkly is a monitoring platform for uptime checks, API checks, browser checks, Playwright check suites, status pages, alerting, dashboards, and trace-based root cause analysis. It supports code-first...

Chromatic

Chromatic is a frontend UI testing and review platform for teams that runs visual, interaction, and accessibility checks in real browsers. It integrates with Storybook, Playwright, and Cypress, and compares snapshots across browsers and viewports to detect regressions before changes ship.

Chronicle

Chronicle is an AI presentation platform for teams that need to create high-quality, on-brand slides at scale. It helps users turn raw notes, outlines, meeting docs, or existing decks into polished presentations with professional diagrams, visuals, and consistent branding.

CircleCI

CircleCI is a cloud CI/CD platform for running automated builds, tests, and deployments from source control events. It supports GitHub, GitLab, and Bitbucket integrations, plus execution environments for Docker, Linux VM, Arm VM, Windows VM, macOS VM, self-hosted runners, and GPU workloads.

Cisco Duo

Cisco Duo is an identity and access management service that provides multi-factor authentication, single sign-on, passwordless options, device trust, and identity intelligence. It integrates with clou...

ClankerMails

ClankerMails is a hosted email inbox service for bots and automations. It provides real email addresses that can be created through an API, then polled or monitored for incoming messages without running an email server.

Clappia

Clappia is a no-code platform for building custom business applications for web, Android, and iOS. Users assemble apps from pre-coded modules, configure workflows and approval rules in a visual editor, and publish apps with cloud hosting and built-in dashboards.

Claude

Claude by Anthropic is an AI assistant designed to help users think through complex work, write clearly, code effectively, and analyze information. It supports a broad set of workflows across writing,...

Clerk

Clerk is an authentication and user management platform that helps teams add secure sign-up, sign-in, and account management flows to web and mobile applications. It provides prebuilt UI components, A...

ClickUp is an all-in-one work management platform that combines project management, docs, chat, dashboards, time tracking, whiteboards, automations, and AI-powered assistance in a single workspace. It...

Clicky

Clicky is a web analytics platform that collects visitor, page view, and JavaScript event data in real time. It provides visitor logs, segmentation, heatmaps, uptime monitoring, outbound link and download tracking, custom data logging, and API access for site analytics.

Clockwork Micro

Clockwork Micro provides web map services and mapping utilities, including Map Maker, Basemap, Elevation API, Terrain Tiles, and USGS topo map products. The Map Maker service is a low-code interface f...

Cloud 66

Cloud 66 is a platform for deploying and managing applications on your own cloud provider or servers. It connects a Git repository and a cloud account, then handles application deployment, scaling, monitoring, and operational controls from a web dashboard.

Cloud Firestore

Cloud Firestore is Firebase’s managed NoSQL document database for mobile, web, and server applications. It is designed to store, sync, and query app data in real time across devices at global scale.

Cloud Functions for Firebase

Cloud Functions for Firebase is a serverless backend platform that lets developers run application logic without provisioning or managing servers. It supports event-driven execution from Firebase products, HTTPS requests, the Admin SDK, and Cloud Scheduler jobs.

Cloud-IAM

Cloud-IAM is a managed Keycloak service for cloud identity and access management. It provides hosted Keycloak environments with support for OpenID Connect, OAuth 2.0, and SAML, plus features such as M...

CloudAMQP

CloudAMQP is a managed message broker service for LavinMQ and RabbitMQ clusters. It automates cluster setup, operation, scaling, monitoring, and upgrades across major cloud platforms, with a control panel for alarms, logs, diagnostics, and user management.

Cloudcraft

Cloudcraft is a web-based diagramming tool for AWS and Azure architectures. It lets users create architecture diagrams manually in a visual designer, switch between 2D and 3D views, and share live diagrams with documentation and collaboration features.

Cloudflare

Cloudflare provides a connectivity cloud platform for websites, applications, AI agents, and networks. Its services include CDN, DNS, WAF, DDoS protection, bot management, zero trust access, serverless compute, storage, and AI-related developer tools.

Cloudflare D1

Cloudflare D1 is a managed, serverless SQL database built on SQLite semantics for applications running on Cloudflare Workers and Pages. It is designed for horizontal scale across many smaller databases, making it well suited for per-user, per-tenant, or per-entity data isolation.

Cloudflare Pages

Cloudflare Pages is a JAMstack platform for deploying frontend websites from GitHub or GitLab repositories. It builds on git push, runs builds on Cloudflare’s edge network, and supports framework-specific deployment guides for React, Vue, Gatsby, and Hugo.

Cloudflare Queues

Cloudflare Queues is a message queuing service that helps developers send and receive messages with guaranteed delivery and no egress bandwidth charges. It integrates with Cloudflare Workers to offloa...

Cloudflare R2

Cloudflare R2 is an object storage service designed for storing large amounts of unstructured data without egress bandwidth fees. It supports standard and infrequent access storage classes, S3-compatible access, and Workers integration for building storage-backed applications.

Cloudflare Workers

Cloudflare Workers is a serverless compute platform that lets teams deploy code at the edge close to users and data. It is designed to help developers ship applications, APIs, and AI-powered experiences without managing traditional infrastructure.

Cloudinary

Cloudinary is an image and video API platform for uploading, storing, transforming, optimizing, and delivering media assets through APIs, widgets, and a web UI. The platform includes image and video t...

Cloudmersive APIs

Cloudmersive APIs is a cloud API platform focused on file security, content scanning, document processing, and related developer utilities. The product includes virus scanning, content disarm and reco...

ClouDNS

ClouDNS is a managed DNS hosting service that provides free and paid DNS zones through a web control panel. The free plan includes 4 unicast DNS servers, 1 DNS zone, 50 DNS records, 500K DNS queries per month, 1 mail forward, and 1 Dynamic DNS hostname.

CoAnimator

CoAnimator is a desktop animation studio that uses AI agents to build and edit videos from plain-language instructions. The product runs locally on macOS, Windows, and Linux, and the agent writes scen...

CockroachDB is a cloud-agnostic, PostgreSQL-compatible distributed SQL database. It runs on CockroachDB Cloud or in self-hosted deployments and supports on-premise, hybrid, and cloud environments.

Coda

Coda is a collaborative workspace that combines docs, tables, views, buttons, automations, and Packs in a single document model. The product supports unshared docs with unlimited pages and objects on the free plan, along with connected tables, charts, kanban boards, forms, and formulas.

Codacy

Codacy is a cloud-based code quality and security platform for Git repositories, IDEs, and AI coding workflows. It scans source code, pull requests, and runtime targets for quality issues, security fi...

Codebuff

Codebuff is an AI coding assistant designed to work directly in the terminal and help developers make changes across an entire codebase. It indexes project structure quickly, understands dependencies and patterns, and generates code edits that fit the existing repository context.

Codecov

Codecov is a code coverage and test analytics platform that integrates with CI systems and code hosts to report pull request coverage, status checks, failed tests, flaky tests, and bundle size changes...

CodedThemes

CodedThemes provides downloadable admin dashboard templates, UI kits, and themes for multiple front-end stacks including Bootstrap, React, Angular, Vue, Next.js, Tailwind, Django, Laravel, and Figma. ...

CodeFactor

CodeFactor is an automated code review service that analyzes source code repositories connected from GitHub or Bitbucket. It supports multiple languages including Python, JavaScript, TypeScript, Vue, ...

codehooks.io

Codehooks.io is a backend platform for receiving, processing, storing, and re-delivering webhooks and automation events. It provides inbound webhook ingestion, outbound webhook delivery, a NoSQL database, queues with workers, cron jobs, REST API routes, and static hosting behind each endpoint.

Codemagic is a hosted CI/CD service for mobile app teams. It connects to GitHub, GitLab, Bitbucket, Azure DevOps, and self-hosted repositories, then runs builds, tests, signing, and distribution for Android, iOS, Flutter, React Native, Ionic, Unity, web, and desktop projects.

Codename One

Codename One is an open-source cross-platform framework for building native apps with Java or Kotlin. It compiles shared application logic and UI to native targets for Android, iOS, Windows, Linux, ma...

CodeSandbox is a cloud-based development environment platform that provides browser sandboxes and VM sandboxes for running code, prototyping applications, and interpreting code in isolated environment...

CodeStitch is a component library for building websites with hand-written HTML and CSS. It focuses on high-quality, mobile-first, fully responsive templates that can be copied into real-world projects without frameworks or configuration overhead.

CodSpeed

CodSpeed is a continuous performance testing platform for pull requests and CI workflows. It instruments benchmark runs, collects profiling data, and compares results over time so developers can detect regressions and inspect differential flamegraphs directly in the development loop.

CoinMarketCap API is a cryptocurrency and DEX market data API that exposes REST endpoints for listings, quotes, historical data, exchange data, global metrics, trending data, content data, and index v...