Dev Tools Hub

Practical guides, reviews, and tutorials for software tools, frameworks, and modern web development workflows—build faster and ship better.

Free Tools

19 Free Tools on unicode.live

All tools run entirely in your browser — no sign-up, no data sent to our servers.

Voice Notepad

AI

Dictate notes hands-free using your browser's speech recognition in 50+ languages.

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Free

Text-to-Speech Reader

AI

Listen to any text read aloud with word-by-word highlighting and speed controls.

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Free

Smart Text Summarizer

AI

Get an extractive summary of any article or document using the TextRank algorithm.

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Free

Keyword Extractor

AI

Extract the most relevant keywords and phrases from any text using the RAKE algorithm.

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Free

Sentiment Analyzer

AI

Analyze the emotional tone of any text with per-sentence sentiment scoring.

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Free

Text Similarity Checker

AI

Compare two texts and measure their similarity using Jaccard and cosine TF algorithms.

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Free

Language Detector

AI

Detect the language of any text using trigram frequency analysis with confidence scores.

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Free

QR Code Generator

Smart

Generate customizable QR codes for URLs, text, WiFi, and more with logo overlay support.

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Free

Hash Generator

Smart

Generate MD5, SHA-1, SHA-256, and SHA-512 hashes using the Web Crypto API.

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Free

JWT Decoder

Smart

Decode and inspect JSON Web Tokens to view header, payload, and expiration.

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Free

Cron Expression Builder

Smart

Build and validate cron expressions with a visual editor and plain-English preview.

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Free

CSS Flexbox Playground

Smart

Experiment with CSS Flexbox properties in real time and copy the generated code.

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Free

SQL Formatter

Smart

Format and beautify SQL queries with syntax highlighting and indentation.

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Free

JSON Formatter & Validator

Format, validate, and minify JSON instantly in your browser.

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Free

Base64 Encoder / Decoder

Encode text or decode Base64 strings instantly.

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Free

Color Code Converter

Convert between HEX, RGB, HSL, and HSB colour formats.

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Free

Regex Tester

Test regular expressions against strings with live match highlighting.

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Free

Markdown Previewer

Write Markdown and preview the rendered HTML side by side.

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Free

URL Encoder / Decoder

Encode or decode URL components and query strings instantly.

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Free

Why these tools are useful

The tools on unicode.live are designed for quick, practical use. Instead of opening a spreadsheet, installing software, or signing up for a trial account, you can run a focused task immediately in your browser and move on with the result.

That makes this collection useful for routine checks, one-off calculations, writing tasks, planning work, and repeat workflows where speed and clarity matter. Each tool has its own page with guidance, common use cases, and supporting context so you can use it with more confidence.

What to expect from this tools hub

  • A focused set of free browser-based tools tailored to the current site.
  • Fast workflows that help with calculations, formatting, planning, and everyday reference tasks.
  • Tool-specific guidance that explains when to use a tool, how to use it, and what to check before relying on the result.
  • Simple access on desktop and mobile without requiring account creation for normal use.

Frequently asked questions

Do these tools require a sign-up?

No. The tools are meant to be used directly in your browser for everyday tasks without creating an account first.

Are these tools private?

They are designed to run in the browser for routine usage, which keeps the workflow lightweight and convenient. You should still avoid entering highly sensitive information unless you have reviewed the page and your own risk requirements.

Are the results always final?

The tools are intended to save time and improve consistency, but high-stakes decisions should still be reviewed in context. That is especially true for legal, financial, medical, and professional use cases.

Can I use these tools on mobile?

Yes. The tools hub and the tool pages are designed to work cleanly across desktop and mobile layouts so you can run quick checks wherever you need them.