Free Online Toolkit

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{ } JSON Formatter

Pretty-print, minify, and validate JSON instantly in your browser.

Format Minify Sort keys Clear

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B64 Base64 Encoder / Decoder

Encode plain text to Base64 or decode Base64 back to text.

Encode Decode

Swap Copy output

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● Color Picker

Pick a color and copy HEX, RGB, HSL.

HEX

RGB

HSL

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⚿ Password Generator

Strong random passwords with length and character controls.

Length:

A–Z a–z 0–9 !@#$

Generate Copy

Ready

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↲ URL Encoder / Decoder

Percent-encode URLs, query parameters, or arbitrary text.

Encode Decode (full URL) Encode component

Swap Copy output

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≣ Unit Converter

Convert between common units of length, weight, and temperature.

Length Weight Temperature

→

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/.*/ Regex Tester

Build and test regular expressions with live match highlighting.

g (global) gi (global, case-insens.) gm (global, multiline) none

I was running while thinking about coding and singing a song.

Ready

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▤ QR Code Generator

Generate a QR code from any text or URL. Works offline after first load.

https://free-online-tools.org/

Generate QR Download PNG

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M↓ Markdown Editor

Write markdown on the left, see the rendered HTML on the right.

# Hello Write **markdown** here. - Live preview - Copy as HTML - Drag images

Copy HTML

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⇄ Text Diff

Compare two blocks of text and see the differences highlighted.

The quick brown fox jumps over the lazy dog. This is a sample sentence for diffing. Welcome to the toolkit page. Last line of the original. The quick brown fox jumps over the sleepy dog. This is a sample sentence for diffing. Welcome to the toolkit page. Brand new line at the end.

Compare

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▢ Image Compressor

Shrink JPG, PNG, WebP files right in your browser. Files never leave your device.

Drop images here or click to select (JPG, PNG, WebP)

Max size (MB): Max width (px): Compress

No files selected.

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▣ PDF Merge

Combine, reorder, and remove pages from PDFs. Files never leave your device.

Drop PDFs here or click to select

Merge PDFs Clear

No files selected.