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
Software Project Tracking Workflows for Developers Using Lightweight Online Tools
Developers, QA, and tech ops rely on software project tracking tools to keep tasks, bugs, and delivery dates aligned with code. This guide shows how to use privacy‑aware, browser‑based workspaces and utilities to structure everyday workflows without adopting a heavyweight project management suite.
Software Creative Cloud for Engineers: Building a Private Browser-Based Debugging Toolbox with Toolcli
Developers who juggle text cleanup, data reshaping, time and color conversion, and secure format checks in the browser need a Software Creative Cloud like toolcli—turning one privacy‑first tab into a streamlined, local‑only debugging and asset toolbox that fits everyday engineering workflows.
Debugging JSON Web Tokens in the Browser: a Practical Workflow for Developers
Front-end engineers often need to peek inside a JSON Web Token directly in the browser. This guide walks through using privacy‑friendly client-side tools to generate, decode, and verify JWTs for real authentication flows without sending tokens to remote debuggers.