All tools
20 tools, grouped by what they do. All of them run entirely in your browser, which means your data stays on your device.
Images
Compress, resize and convert images without uploading them.
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Image Compressor
Shrink JPEG, PNG and WebP images without uploading them.
Stays on your device
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Image Converter
Convert between WebP, JPEG and PNG, and see which is smallest.
Stays on your device
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Image Cropper
Crop, rotate and flip an image without uploading it.
Stays on your device
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Image Resizer
Resize an image to any size, in your browser.
Stays on your device
Developer
JSON, regex, encoding and the other small things.
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Base64 Encoder / Decoder
Encode text or files to Base64, and decode it back.
Stays on your device
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Hash Generator
SHA-256, SHA-384 and SHA-512 for text or a file.
Stays on your device
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JSON Diff
Compare two JSON documents and see exactly what changed.
Stays on your device
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JSON Formatter
Format, validate and inspect JSON.
Stays on your device
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JSON to CSV
Turn JSON into a spreadsheet-ready CSV file.
Stays on your device
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JSON to JSON Schema
Infer a JSON Schema from a sample document.
Stays on your device
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JSON to TypeScript
Generate TypeScript interfaces from a JSON sample.
Stays on your device
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JSON to YAML
Convert JSON into readable YAML.
Stays on your device
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JWT Decoder
Read what a JSON Web Token says — without verifying it.
Stays on your device
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Regex Tester
Test regular expressions against your text, live.
Stays on your device
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URL Encoder / Decoder
Percent-encode and decode URLs and query values.
Stays on your device
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URL Parser
Break a URL into its parts, and strip the tracking off it.
Stays on your device
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UUID Generator
Generate random UUIDs, in bulk.
Stays on your device
Text
Clean up, transform and inspect text.
Numbers & Calculators
Dates, timestamps, units and quick maths.
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Webhook Inspector
Debugging a webhook next?
Get a URL, point any sender at it, and read every header and byte that arrived. Signing secrets and personal data are stripped before anything is written down — so you can debug with a real payload instead of a redacted guess.
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