Privacy-first
Local-first, with network tools clearly marked
Know your tools instantly
Convert, inspect, and ship faster with toolcli
Text, data, time, colour, security, and generator utilities live in a single workspace so you always know where to go for quick fixes.
High performance
Edge-accelerated delivery
Multi-language & themes
English/Chinese with light/dark modes
Workflow Picks
Featured workflows
01Open workflow →02Open workflow →03Open workflow →
401 / 403 and webhook troubleshooting
API Auth Debugger
Check JSON bodies, diagnose JWT timing issues, and verify HMAC-SHA256 signatures.
Multi-line content processing
List Cleanup & Export
Clean multi-line content, normalize lists, and export reusable formats.
Web image publishing workflow
Responsive Image Publisher
Turn source images into responsive AVIF and WebP assets, ready-to-use picture markup, and one downloadable package.
Tool Picks
Featured tools
JSON Toolkit
Format, compact, or validate JSON payloads.
Batch Image Lab
Compress multiple images in one go with unified settings, previews, and bulk downloads.
Time Studio
Convert timestamps and dates between multiple formats with ease.
Hash Workbench
Generate SHA digests or HMAC signatures for payloads.
Color Lab
Convert between HEX/RGB or generate vibrant palettes instantly.
Identifier Forge
Mint UUIDs, Nano IDs, secure tokens, passwords, or filler text.
Practical guides
From the blog
Mastering Command-Line Workflows in the Browser with Privacy‑Friendly Tools
When your day revolves around curl, git, npm, and bash, designing commands directly in the terminal is fragile and hard to review. This guide shows how to use privacy‑friendly browser tools like toolcli.com to compose, format, and validate complex CLI workflows before safely running them locally.
Toolcli as a Browser-Based Tool Library for Everyday Dev Workflows
toolcli turns your browser into a focused tool library for developers, centralizing JSON viewers, converters, and debugging helpers in one tab. Use it as an all-in-one dev toolbox to streamline frontend, backend, and QA workflows while keeping data processing local and private.
Developer Guide to Using an Online XML Formatter and Validator
When you’re debugging XML APIs, configs, or logs, you often need a fast way to format, validate, and edit XML without installing anything. This guide shows how Toolcli’s browser-based XML formatter lets developers beautify, minify, and inspect XML entirely client-side.