Private browser tools

Developer tools that keep pasted text local.

Format, minify, convert, encode, decode, compare, and hash without sending snippets away from this browser tab.

Utility pages

Browser-only helpers

29 utility tools

JSON Tools

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JSON Viewer

View, validate, and pretty-print JSON locally in your browser. Paste API responses, configs, or logs and inspect formatted JSON without uploading data.

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JSON Sort Keys

Sort JSON object keys recursively in your browser for stable snapshots, readable config files, and easier diffs.

Open
JSON Diff

Compare two JSON documents side by side in your browser and see added, removed, and changed values without uploading either file.

Open

Web Encoding Tools

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Regex Tester

Test JavaScript regular expressions locally in your browser and inspect matches without uploading sample text.

Open
URL Encoder/Decoder

Encode and decode URL components locally in your browser for query strings, paths, and copied links.

Open

Data Converters

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JSON to YAML

Convert JSON to readable YAML locally in your browser for config files, docs, and infrastructure snippets.

Open
YAML to JSON

Convert simple YAML documents to JSON in your browser. Useful for config snippets, examples, and structured notes.

Open
JSON to CSV

Convert arrays of JSON objects to CSV locally in your browser for spreadsheets, reports, data checks, and quick exports.

Open
XML to JSON

Convert XML documents to JSON locally in your browser for quick inspection, API work, and migration notes.

Open
CSV to JSON

Convert CSV rows to JSON arrays locally in your browser. No upload, no account, and no server storage.

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CSV TSV Converter

Convert CSV to TSV or TSV to CSV locally in your browser without uploading tabular text.

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TOML to JSON

Convert TOML config snippets to JSON locally in your browser for quick inspection.

Open
JSON to TOML

Convert simple JSON objects to TOML locally in your browser with no upload.

Open

Security Utilities

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JWT Decoder

Decode JWT headers and payloads locally in your browser. Inspect token claims without uploading the token.

Open
Hash Generator

Generate SHA-256, SHA-1, SHA-384, and SHA-512 hashes locally in your browser with no upload.

Open

Color Tools

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Color Converter

Convert HEX, RGB, and HSL colors locally in your browser for CSS variables, design tokens, palettes, and theme checks.

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Markup Tools

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Markdown Preview

Preview Markdown as HTML locally in your browser without uploading notes, docs, or snippets.

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Text Utilities

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Time Utilities

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CSS Utilities

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