Best developer tools in 2026

Free, open-source browser pixel art and sprite animation studio with PIX2 workflows and Unity sprite export.

An iOS and Android app that shows remaining usage limits and reset times for AI coding services.

A backend for coding agents: model gateway, auth, Postgres and storage behind one project key.

Continue your coding-agent terminal session from computer to iPhone and iPad.

17 free online tools for developers, DevOps and sysadmins

Software licensing and a branded store, with online, offline, floating and metered licenses and eight SDKs.

Open-source PIM and DAM platform to manage, enrich, and distribute product data with AI.

Free Claude Code plugin for SEO, AEO and GEO, with site audits, content plans, schema and link checks.

Discover trending GitHub projects with bilingual AI reviews and historical rankings

Define whole features. Give AI agents context. Verify the implementation.

An offline-first Kanban app for macOS with local SQLite storage and an MCP server for AI agents.

A native Mac terminal built for fast SSH workflows, multi-host operations, and agent-aware remote work.

Open-source uptime monitoring and public status pages

Business messaging APIs for SMS, WhatsApp, RCS and OTP

Android testing tool for QA: device profiles, test identifiers, location and Wi-Fi values per app.

SMS, OTP and programmable voice for Brazilian businesses

Video background removal via API and remote MCP.

Reliability primitives for Python async operations

Free browser utilities for JSON, CSV, images, audio and everyday file tasks

Eight free developer tools that run in your browser.

Open-source SQL workspace for desktop and web

CSV imports for React with column mapping, validation, and inline corrections

Desktop SVG icon editor with a built-in MCP server.

Localize software changes with AI drafts, automatic checks and team review.

AI sprite animations for indie 2D game developers

37 free browser tools for text, CSV and JSON, with no account required.

Browser tools for viewing, comparing, validating, escaping and converting JSON.

Live and historical market data for developers

Check coding-agent edits against plain-English code requirements

A separate Mac desktop for each project’s terminals, coding agents and browser preview

Check software license compatibility and identify potential conflicts before combining or distributing code.

A fast formatter and linter for JavaScript, TypeScript, JSON and CSS in one tool.

A frontend build tool with a fast dev server and optimised production builds.

A social website for writing and deploying small TypeScript functions in the browser.

Error tracking and performance monitoring for applications.

An open-source AI engineering platform for designing, verifying and shipping circuit boards.

A framework for building command-line tools that AI agents use to reach SaaS platforms.

A small, fast, open-source code editor for Windows, Linux and macOS, written in assembly.

An agentic coding environment for running AI agents in parallel and reviewing their edits.

An open-source Wolfram Language interpreter written in Rust, with a browser playground.

A rootless Linux sandbox for isolating coding agents and third-party programs.

Markdown notes that run shell commands, code, SQL and AI prompts in place.

Cloud computers for coding agents such as Claude Code and Codex, managed from desktop, phone or terminal.

KiCad in the browser, with real-time collaboration on the same project.

A post-mortem debugger for native Windows x86 and x64 crashes, currently in private beta.

A keyboard launcher for Mac that replaces Spotlight with extensions, snippets and window management.

A documentation platform that turns Markdown in your repo into a polished docs site.

An infinite canvas SDK for React, and the whiteboard built on top of it.

A fast JavaScript runtime, bundler, test runner and package manager in one binary.

A browser-based 3D design tool for building interactive scenes for the web.

A design tool and runtime for interactive animations that ship to web, mobile and games.

A fast, open-source code editor written in Rust, with multiplayer editing and AI built in.

A modern terminal with command blocks, an editor-style input and built-in AI agents.

An AI code editor built on VS Code, with codebase-aware chat, edits and agents.

An email API for developers, with React Email templates and deliverability tooling.

Sketch Material 3 Expressive screens in the browser and turn them into vibe-coding prompts.

Autonomous research system for measurable, computer-executable research.