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iTool

Useful tools.A little play.

31 local-first browser tools, plus standalone products like LinkShell, StupidMirror and Luma.

Made by iTool
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{"hello":"world","tools":31,"ready":true}
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A little browser tool

JSON formatter

A little messy? Put it all in order.

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Made by iTool

From steering agents on your phone to self-hosted deploys, each ships on its own.

All products

Transeen

macOS

Translate any part of your screen, right where it belongs. A native Mac app for capture, annotation, and translation.

LinkShell

Terminal

Take over a local terminal and agent session from your phone.

StupidMirror

macOS

Mirror iPhone and Android onto a Mac, for you and your agent.

VibeCheck

Audit

Paste a URL. See if that vibe-coded site would make anyone stay.

Luma

Open source

Open-source self-hosted deploy control plane. One YAML for DNS, TLS, and Nomad.

LUXE WATCH

Monitor

Luxury price, stock, and discount monitoring.

PlaceToWorld

iOS app

Scene photography with AI fusion into the frame.

Four places to start

Token Hold’em

Play a local AI table, or share a pairing code so an agent can sit via WebMCP and play for real

Take a seat

AI Sichuan Mahjong

Play Dingque and Bloody Battle Sichuan Mahjong against GPT-5, Claude, and DeepSeek

Start the battle

DISS Personality Index

21 scenario questions, 4 models with 12 dimensions of cross-analysis. Find out your internet alter ego.

Start Test

Skills Hub

Picked by real installs on skills.sh, for Claude Code, Codex, Cursor and more. One command to install.

View Details
JSON FormatterDiff EditorURL Encoder / DecoderRegex TesterTimestamp ConverterJWT DecoderHash GeneratorBase64 CodecSQL FormatterCron GeneratorJSON to TypescURL to CodeImage CompressorColor ConverterCSS GeneratorCode to Image
SVG OptimizerImage ConverterPDF ToolkitCSV / Excel ⇔ JSONQR Code GeneratorMarkdown ConverterText CleanerWord Count & Platform LimitsMCP DebuggerAI Regex GeneratorAI Mock APIAI Mermaid GeneratorAI Token CounterAI Background RemoverAI ID Photo Generator

Tools

Dev Tools

JSON FormatterFormat, validate, and minify JSON with syntax highlighting and error hintsDiff EditorCompare two pieces of text or code line-by-line, highlighting additions, deletions, and changesURL Encoder / DecoderEncode or decode any URL or string using encodeURIComponent / decodeURIComponentRegex TesterTest regular expressions in real-time with match and replace highlightingTimestamp ConverterConvert Unix timestamps to dates and vice versa, with seconds/milliseconds and UTC/local supportJWT DecoderQuickly parse JWT Header and Payload (signature not verified)Hash GeneratorGenerate SHA-1, SHA-256, SHA-384, and SHA-512 hashes from any textBase64 CodecEncode and decode text to/from Base64 format with URL-safe optionsSQL FormatterFormat and beautify SQL queries for multiple dialects (PostgreSQL, MySQL, etc.)Cron GeneratorGenerate and parse cron expressions with human-readable descriptions and next execution datesJSON to TypesConvert JSON objects to TypeScript interfaces, Go structs, Rust structs, and morecURL to CodeParse curl commands and generate type definitions for TypeScript, Go, Rust, Python, Java

Design Tools

Image CompressorBatch compress images in-browser with WebP/JPEG/PNG output, quality control, and ZIP downloadColor ConverterConvert colors between HEX, RGB, HSL, HWB, CMYK, and LCH formatsCSS GeneratorGenerate CSS for box-shadow, gradients, border-radius, and more with visual previewsCode to ImageExport clean, share-ready syntax highlighted images from code snippetsSVG OptimizerOptimize and minify SVG files to reduce file size while maintaining qualityImage ConverterConvert images between PNG, JPEG, WebP, GIF, and AVIF formats

Productivity

PDF ToolkitMerge multiple PDFs or split by page range, entirely in the browserCSV / Excel ⇔ JSONConvert between CSV, Excel, and JSON with file import supportQR Code GeneratorCreate QR codes for links, Wi-Fi, text, and contacts, then export PNG or SVG locally

Text Tools

Markdown ConverterTwo-way conversion between Markdown and HTML with real-time previewText CleanerTrim lines, remove blanks, deduplicate, and sort text in one clickWord Count & Platform LimitsCount characters, words, and reading time against common publishing limits

AI Tools

MCP DebuggerConnect to a remote MCP Server and debug Tools, Resources, and PromptsAI Regex GeneratorGenerate regular expressions from natural language descriptions using AIAI Mock APIGenerate schema-compliant mock data from your JSON or schema specsAI Mermaid GeneratorGenerate Mermaid diagrams from natural language descriptions using AIAI Token CounterEstimate token counts and reference costs for GPT, Claude, Gemini, and DeepSeekAI Background RemoverRemove backgrounds with clear edges and export transparent PNGsAI ID Photo GeneratorFormat standard passport and ID photos with 1-inch, 2-inch, and clean backdrops

Pricing plans

Everyday tools stay free. Choose a monthly or yearly plan for more.

Free

¥0

  • Unlimited use of all core formatters and converters
  • Daily free quota for AI tools
  • Your data stays in your browser
All 31

Monthly

¥9.9/ mo

  • Unlimited advanced tools on the site
  • LinkShell membership

Yearly

Best value

¥99/ yr

  • Everything in Monthly
  • Transeen, StupidMirror, VibeCheck and Saylane
Compare plans