Find the free tierthat fits your stack.

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, ...

mail-tester.com

mail-tester.com is an email testing service that evaluates the spamminess and deliverability of messages sent to a generated test address. Users send an email to the service and then review the result...

dropshare

dropshare is a zero-knowledge file sharing service that encrypts files in the browser before upload using AES-256-GCM and the Web Crypto API. The service stores only encrypted blobs on Cloudflare R2, with the decryption key embedded in the share URL fragment so it never reaches the server.

Diff Text

Diff Text is a client-side text comparison tool that shows differences between two blocks of text in a split view. It supports word-level and character-level comparison modes, and it can compare plain text, code, JSON, YAML, HTML, CSS, markdown, and other text formats.

EverSQL

EverSQL is a SQL query optimization and database observability tool for PostgreSQL and MySQL. It analyzes submitted queries and rewrites them with AI-based optimization suggestions, including indexing recommendations and explanations of the changes.

WPJack

WPJack is a WordPress control panel for provisioning and managing WordPress servers on supported cloud providers, including DigitalOcean, Linode, Hetzner, and Vultr. It creates servers with Nginx, a d...

Plasmic

Plasmic is an open-source visual builder and content platform for websites and apps. It connects to existing codebases, lets teams design responsive UIs, and supports data integrations, Figma import, and code components for production use.

Xirsys

Xirsys is an SDK-agnostic WebRTC connectivity API for NAT traversal and TURN/STUN relay services. It provides ICE server configuration, TURN servers in 12 production regions, user-geo routing, API-issued temporary credentials, and static non-expiring TURN credentials.

DJ Checkup

DJ Checkup is a web-based security checker for Django sites. A user submits a site URL, and the service runs automated checks for common configuration issues such as HTTPS usage, DEBUG mode being enabled, open admin access, and missing security headers.