Apps with 'Developer Tools' feature Page 67 of 106

Sendpit is a hosted email testing sandbox designed for developers and QA teams. It allows applications to send emails to a safe inbox where messages can be inspected, debugged, and tested without being delivered to real users.

This free and fast tool transforms any block of text into a unicode font of your choice. Several themes will be offered to you such as: Fantasy, Instagram, Aesthetics, etc..

Discover your next unicorn startup idea through daily AI-generated SaaS concepts voted on by thousands of entrepreneurs. NextUnicorn is a Tinder-style platform where you swipe through innovative business ideas, vote on promising ones, and explore our Hall of Fame to see which...

A free, local-first, desktop Automated Software Factory that uses any of OpenAI, Anthropic, Gemini, DeepSeek, custom or local LLM APIs to handle the full SDLC, from spec elaboration to coding and testing, without any cloud-based backend.

All the URL conversion tools at your fingertips. 100% FREE and easy to use! Convert URLs to Markdown, PDF, Text, images and more with just a few clicks.

Tabu is a privacy-first image and video moderation API built specifically for developers, startups, and indie hackers. It detects explicit and NSFW content (pornography, hentai, sexy) with a single API call, allowing you to easily protect your user-generated platforms and comply...

Your macOS development environment, perfectly preserved. Never lose your setup again.

OpenChoreo is a developer platform for Kubernetes that lets developers and AI agents build, deploy, and operate apps, resources, and agentic workloads. It provides development and platform abstractions, a Backstage-powered developer portal, CI/CD, GitOps, and observability.

Matter.js is 2D rigid body physics engine for the web, using JavaScript and HTML5.

MLScrape is an API that allows you to scrape data from any online shop without having to maintain your own web scraper - simply send the product URL to our API.

Automatically mask sensitive data (API keys, PII) locally before pasting into AI chatbots like ChatGPT and Gemini.

Palettt helps designers and developers create beautiful, accessible color palettes in minutes.

Open-source webhook gateway that sends webhooks to your customers and receives them from other services, with signatures, retries and a full delivery history.

A straightforward online tool that helps you easily understand and convert network speeds. Whether you’re checking your internet performance, calculating download times, or comparing data rates, you’ll get instant and accurate results.

Effortlessly restore your MySQL backup to any remote database without writing code or managing servers. Prioritize data security with a tool that guarantees no storage of your data.

A TypeScript/JavaScript library for quickly building performant declarative user interfaces without the use of a virtual DOM.

upup is a free, MIT-licensed drag-and-drop file uploader for web apps. One headless core powers native UI packages for React, Vue, Svelte, Angular, Preact, vanilla JavaScript and Next.js, so every framework gets the same uploader instead of a wrapper.

Omni PDF helps teams create reusable PDF templates with a visual editor or AI, then generate documents instantly via API using JSON data. Perfect for invoices, certificates, contracts, proposals, and reports.

Code Buster reports dependency wiring, dead code, cycles, duplication, complexity, architecture-policy violations, feature flags, security and style heuristics, quality scores, and remediation plans.

Desktop AI agent workstation that plans, builds, reviews, debugs and tests real projects beside your editor, and asks before it writes.

A third-party Twitter data API for developers and researchers, with 70+ endpoints, maintained SDKs, and hosted MCP access.

vatnode is a developer-first API for validating EU VAT numbers. It returns VIES consultation numbers for qualified checks, plus checkId and verifiedAt fields for audit-ready invoice records. Includes national registry fallback when VIES is unavailable. EU-hosted. Free tier.

ReqResp is a fast, lightweight, and modern API testing app designed for developers, testers, and backend engineers. It helps you create, send, and analyze HTTP requests with ease — anytime, anywhere.

Skylink API offers comprehensive aviation data, including real-time flight tracking, weather, and airport information. It's a developer-friendly service providing structured data for various applications like flight tracking and pilot tools.

Unified API offering geographic, timezone, holiday, currency, airport, and astronomy data with standard authentication, comprehensive coverage, and interconnected datasets.