Free Online Tools for Everyone

Developer tools, converters, generators, and more. All tools run entirely in your browser — your data never leaves your device.

Developer Tools Text Tools Image Tools Security Tools Converters

Developer Tools

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JSON Formatter & Validator

Format, validate, and beautify JSON data instantly.

B64

Base64 Encode/Decode

Encode and decode Base64 strings instantly.

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URL Encode/Decode

Encode and decode URLs and query strings instantly.

Markdown Preview

Preview Markdown as rendered HTML

Regex Tester

Test and debug regular expressions

JWT

JWT Decoder

Decode and inspect JWT tokens

CSS

CSS Minifier & Beautifier

Minify or beautify CSS code

UUID Generator

Generate random UUID v4 identifiers

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Cron Expression Parser

Parse cron expressions to readable text

Text Tools

Word Counter

Count words, characters, sentences, and reading time.

Lorem Ipsum Generator

Generate placeholder text for designs and layouts.

Diff Checker

Compare two texts and find differences

Image Tools

IMG

Image to WebP Converter

Convert images to WebP format for smaller file sizes.

RSZ

Image Resizer

Resize images to custom dimensions

Security Tools

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Password Generator

Generate strong, secure random passwords instantly.

Hash Generator (MD5, SHA)

Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from text.

Converters

QR Code Generator

Generate customizable QR codes for any text or URL.

CLR

Color Picker & Converter

Pick colors and convert between HEX, RGB, and HSL.

Timestamp Converter

Convert Unix timestamps to dates

CSV

JSON to CSV Converter

Convert JSON data to CSV format

Why OurToolNest?

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100% Private

All tools process data locally in your browser. Nothing is sent to any server.

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Lightning Fast

No uploads, no waiting. Everything runs instantly on your device.

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Completely Free

No signup, no limits, no hidden fees. Just open and use.