Every devtool you need, in one fast page.

Base64 Encode / Decode

Encode text to Base64 or decode back instantly.

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URL Encoder & Query Parser

Encode/decode URLs, inspect query params.

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JWT Decoder

Decode header & payload, check expiry.

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HTML Entities Encoder

Escape & decode HTML characters.

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JSON Formatter & Validator

Prettify, minify, validate, sort keys.

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SQL Formatter & Checker

Format, minify, validate SQL queries.

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Regex Tester

Test patterns live with match highlight.

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Text Case Converter

camelCase, snake_case, Title + word count.

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Color Converter

HEX ↔ RGB ↔ HSL, contrast + palettes.

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Markdown Preview & Export

Write markdown, preview + export HTML.

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XML Formatter & Validator

Prettify, minify, find tag errors.

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Chmod Calculator

Click permissions → octal + symbolic.

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Number Base Converter

Binary, octal, decimal, hex + ASCII.

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Curl Converter (curl ↔ Code)

curl to code & CLI (wget, httpie, PowerShell) + builder.

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Delimiter Converter (delim.co alternative)

Convert CSV, TSV, pipes, custom delimiters.

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Timestamp Converter

Unix time ↔ human date, ISO, UTC.

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JSON Diff Checker

Compare two JSONs, highlight added/removed/changed.

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JSON to CSV Converter

Flatten JSON arrays to CSV/TSV download.

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Text Diff Checker

Line diff for any two texts.

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YAML ↔ JSON Converter

Convert YAML to JSON and back.

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CSV Viewer & Table

View CSV as sortable searchable table.

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Line Toolkit: Sort & Dedupe

Sort, dedupe, number, affix lines.

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SEO Checker (HTML Audit)

Paste HTML → instant SEO audit.

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Image Compressor

Shrink JPG, PNG, WebP locally.

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Image Crop & Resize

Crop to aspect ratio, resize, export.

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Background Remover

Remove photo background with AI, locally.

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Image to Base64 / Base64 to Image

Encode images to data URIs, decode back.

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Image Downloader & Resizer

Fetch by URL, resize, convert, download.

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Favicon Generator

PNG logo → multi-size icons + .ico.

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Hash Generator (SHA)

SHA-256, SHA-384, SHA-512 in browser.

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UUID Generator (v1–v7)

Bulk UUIDs v1 v3 v4 v5 v6 v7 + nil.

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ULID Generator & Decoder

Sortable 26-char IDs + timestamp decode.

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Password Generator

Strong random passwords, bulk + entropy.

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QR Code Generator

Text/URL to QR, PNG + SVG download.

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Lorem Ipsum Generator

Dummy text by paragraphs/sentences.

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Cron Expression Builder

Build cron + plain-English preview.

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Sitemap.xml Generator

URL list → sitemap.xml download.

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Meta Tag Generator

SEO + OG tags with SERP preview.

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