Fair Toolbox

Free online tools that run in your browser. No signup. No tracking links.

QR Code Generator

Paste a URL and instantly generate a downloadable QR code. No tracking links added.

Generator

JSON Formatter

Paste minified or messy JSON and get clean, indented output. Shows errors for invalid JSON.

Formatter

Base64 Encoder

Encode any text or string to Base64 instantly. Useful for embedding data, APIs, and more.

Encoder

Base64 Decoder

Decode a Base64 string back to plain text. Inspect tokens, payloads, and encoded data.

Decoder

URL Encoder

Encode text for safe use in URLs and query parameters. Handles special characters and Unicode.

Encoder

URL Decoder

Decode percent-encoded URLs back to readable text. See what's behind %20 and %3D.

Decoder

Markdown to HTML

Convert Markdown syntax to clean HTML. Supports headings, lists, links, code blocks, and more.

Converter

HTML to Markdown

Convert HTML markup back to clean Markdown syntax. Great for migrating content.

Converter

Word Counter

Count words, characters, sentences, and paragraphs in any text. Live updating.

Counter

Color Picker

Pick a color and convert between HEX, RGB, and HSL formats instantly.

Converter

CSV to JSON

Convert CSV data to JSON format. Uses the first row as keys.

Converter

JSON to CSV

Convert JSON arrays to CSV format for spreadsheets and data tools.

Converter

Lorem Ipsum Generator

Generate placeholder text by paragraph, sentence, or word count.

Generator

Password Generator

Generate strong, random passwords with customizable length and character types.

Generator

Hash Generator

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

Generator

UUID Generator

Generate one or many random UUIDs (v4) instantly. Copy with one click.

Generator

Case Converter

Convert text between UPPER, lower, Title, camelCase, snake_case, and more.

Converter

Text Diff Checker

Compare two texts side by side and see differences highlighted line by line.

Comparator

Regex Tester

Test regular expressions against text. See matches highlighted in real time.

Tester

YAML / JSON Converter

Convert between YAML and JSON formats in either direction.

Converter

JWT Decoder

Decode JSON Web Tokens and inspect the header, payload, and expiration.

Decoder

JSON Minifier

Compress JSON by removing all whitespace and formatting. Opposite of formatter.

Formatter

HTML Entity Converter

Encode special characters to HTML entities and decode them back.

Converter

Number Base Converter

Convert numbers between binary (base 2), octal (8), decimal (10), and hex (16).

Converter

Cron Expression Parser

Parse cron expressions and see them explained in plain English with next run times.

Tool

Markdown Preview

Write Markdown and see the rendered HTML preview updating in real time.

Tool

Aspect Ratio Calculator

Enter a width and ratio (16:9, 4:3, etc.) to calculate the matching height.

Tool

Text to Speech

Read any text aloud using your browser's built-in speech synthesis. Choose voice and speed.

Tool

Unit Converter

Convert between units of length, weight, and temperature. Metric and imperial.

Converter

Timecode Writer

Log timestamped editing notes while a timer runs. Export as text for video and podcast review.

Tool

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What Is Fair Toolbox?

Fair Toolbox is a collection of free, browser-based utilities. Every tool runs entirely on your device — your data is processed locally using JavaScript, never uploaded to a server.

There are no accounts, no email gates, and no tracking links injected into your output. Just tools that do what they say.

Why Use Fair Toolbox?

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