All tools
Everything here runs on your own machine. The file you drop on a page is read by JavaScript in that tab, processed there, and handed back as a download. Nothing is uploaded, so there is no queue, no account, and no copy of your document sitting on a server afterwards.
The tools are grouped by what they operate on. If you want the reasoning behind which tools exist and which ones I have refused to build, the methodology page covers it.
Image
5 toolsImage Compressor
Reduce image file size without losing quality.
Image Resize
Resize images to exact dimensions with aspect ratio lock.
Image Format Converter
Convert images between PNG, JPG, and WebP.
Image Cropper
Crop images to exact dimensions with presets.
SVG to PNG
Convert SVG graphics to PNG images at any scale.
Spreadsheet
4 toolsText
2 toolsDeveloper
11 toolsJSON Formatter
Validate and beautify JSON with syntax highlighting.
JSON Visualizer
Visualize JSON as an interactive node graph.
JSON to YAML
Convert between JSON and YAML formats instantly.
Regex Tester
Test regular expressions with live matching and groups.
Diff Checker
Compare two texts side by side and see differences.
Base64 Encoder
Encode and decode Base64 strings with UTF-8 support.
URL Encoder
Encode and decode URL components and special characters.
Markdown Preview
Write Markdown and see live HTML preview side-by-side.
HTML to Markdown
Convert HTML code to clean Markdown text.
UUID Generator
Generate random UUID v4 identifiers in bulk.
Timestamp Converter
Convert Unix timestamps to dates and back.