原文
Nothing ever leaves your device
Ten utilities. Zero uploads.
A collection of fast, single-page tools for developers, marketers and creators — every one of them runs entirely in your browser.
SVG → PNG / WebP
Batch convert vectors to raster images.
Regex Visualizer
Debug patterns with live highlighting.
Social Image Resizer
Crop with platform safe-zone overlays.
PDF Splitter & Merger
Merge or split PDFs in your browser.
JSON → CSV / Excel
Flatten JSON and export spreadsheets.
SRT to Clean Text
Strip timestamps from subtitles.
UTM Link Builder
Build and track campaign URLs.
SQL Formatter
Beautify queries for any dialect.
Contrast Checker
WCAG AA/AAA accessibility scoring.
Markdown Previewer
Live preview, HTML and rich-text export.
Privacy guaranteed: all processing happens 100% locally on your computer. Your files are never uploaded to a server.
Enjoying these tools?
Buy me a coffee