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
Evaluating Npm Packages for Node.Js and JavaScript Workflows with Local, Privacy‑Aware Tooling
When your Node.js and JavaScript projects depend on many npm packages, choosing lean, secure dependencies becomes critical for logs, data conversion, timestamps, hashing, colors, and assets. This guide helps you build a curated package list, manage package.json, and pair local processing with toolcli’s online utilities without leaking sensitive data.
Using Online JSON to XML Formatter Tools in Browser-Based Workflows
When you’re debugging web payloads, in‑browser JSON ↔ XML formatters and converters help you safely reshape logs and API responses. This guide walks through client‑side tools for validating, converting, and formatting JSON and XML without sending data off your machine.
TPMS Relearn Tool as a Data-State Machine for Developers
Treating a TPMS relearn tool as a protocol‑aware client, this guide reframes sensor IDs, 315/433 MHz profiles, and OBD2 workflows as state machines and data streams so engineers can log, compare, and debug TPMS events with the same rigor as distributed systems.