Find the free tierthat fits your stack.

GraphComment

GraphComment is a web commenting platform that embeds a discussion widget on a website and supports threaded replies, votes, shares, media embedding, text formatting, notifications, moderation tools, and multilingual interfaces.

Mockplus Cloud

Mockplus Cloud is a web-based design collaboration and handoff platform. It imports design files from Sketch, Adobe XD, Photoshop, Axure, and Figma, then centralizes review comments, revision history, design specs, assets, and code snippets in a shared project workspace.

Adapty

Adapty is a subscription management platform for mobile in-app purchases. It provides an SDK for iOS, Android, Flutter, React Native, Unity, Capacitor, Kotlin Multiplatform, FlutterFlow, Stripe, and Web API integrations, plus server-side APIs, webhooks, and cloud data export.

Geolocated.io

Geolocated.io is an IP geolocation API that returns location and network data for an IP address in JSON format. The landing page describes RESTful endpoints for standard IP lookup, self IP lookup, spe...

Exercism

Exercism is an online programming practice platform that provides language tracks, coding exercises, automated feedback, and human mentoring across 83 programming languages. It supports both local CLI-based workflows and an in-browser editor for solving exercises.

SimpleLocalize

SimpleLocalize is a translation management platform for software projects. It provides a web-based translation editor, translation hosting, CLI synchronization, integrations for IDEs and GitHub, and workflow features such as auto-translation, QA checks, public suggestions, and automations.

Visual Studio Code

Visual Studio Code is a source-code editor from Microsoft that runs on macOS, Windows, Linux, and the web. The page describes it as an open source AI code editor with support for multi-agent development, extensions, documentation, an API, and web-based editing through vscode.dev.

Corgea

Corgea is an application security platform that scans code, dependencies, infrastructure as code, containers, and secrets from a single workflow. It includes AI SAST, dependency scanning, IaC scanning, container scanning, secrets detection, and logic/auth scanning in the Free plan.

Gridlastic is a cloud Selenium Grid service that provides private browser test environments on Amazon AWS. Users launch a Selenium Grid in the AWS region closest to their test infrastructure, then point existing test suites at the grid hub without changing their environment.