Handy tools, bright & private

52 free utilities for text, code, QR codes, decisions and conversions. Everything runs in your browser, so nothing you type is uploaded.

🔒 No uploads⚡ Instant📱 Works on mobile🆓 Free, no sign-up
Text Tools12 tools · Convert case, count words, clean up and compare text.Developer Tools16 tools · Format JSON, encode/decode, hash, test regex and more.Generators6 tools · QR codes, barcodes, passwords, passphrases and more.Random & Decisions6 tools · Spin wheels, pick names, flip coins and roll dice.Unit Converters12 tools · Length, weight, temperature, cooking and more.

Popular right now

QR Code GeneratorURL, text, Wi-Fi, vCard, email, phone. Colors, logo, PNG/SVG.
Wheel SpinnerSpin a custom wheel of names, prizes or choices.
Word & Character CounterWords, characters, sentences, reading time and keyword density.
JSON Formatter & ValidatorPretty-print, minify and validate JSON with error lines.
Password GeneratorStrong random passwords with a strength meter.
Case ConverterUPPER, lower, Title, Sentence, camelCase, snake_case and more.
Cooking Measurement ConverterCups ↔ grams by ingredient, tbsp, tsp, mL, oz.
Unix Timestamp ConverterEpoch seconds/milliseconds ↔ human dates in any zone.

Text Tools

View all →
Case ConverterUPPER, lower, Title, Sentence, camelCase, snake_case and more.
Word & Character CounterWords, characters, sentences, reading time and keyword density.
Remove Line BreaksJoin lines into one paragraph or keep paragraph breaks.
Remove Duplicate LinesDelete repeated lines, keep the first occurrence and order.
Sort LinesSort A–Z, Z–A, naturally, by length, numerically or shuffle.
Find & ReplaceReplace text with match case, whole words or regex.
Text Diff CheckerCompare two texts and highlight what changed.
Reverse TextReverse letters, words, lines, or each word.
Lorem Ipsum GeneratorPlaceholder paragraphs, sentences or words.
Small Text & Fancy FontsTiny text, bold, script, bubble and upside-down fonts to copy.
Strikethrough & Underline TextS̶t̶r̶i̶k̶e̶, u̲n̲d̲e̲r̲l̲i̲n̲e̲ and other combining styles.
Slug GeneratorTurn titles into clean, SEO-friendly URL slugs.

Developer Tools

View all →
JSON Formatter & ValidatorPretty-print, minify and validate JSON with error lines.
JSON ↔ CSV ConverterConvert JSON arrays to CSV and CSV back to JSON.
Base64 Encode / DecodeUTF-8 safe Base64 and Base64URL for text.
URL Encode / DecodePercent-encode text or decode URLs; inspect query strings.
HTML Entity Encode / DecodeEscape < > & " ' or decode entities like &copy;.
UUID GeneratorRandom v4 or time-ordered v7 UUIDs, in bulk.
Hash GeneratorMD5, SHA-1, SHA-256, SHA-384 and SHA-512 of any text.
JWT DecoderDecode JWT header and payload; see expiry times.
Regex TesterTest JavaScript regular expressions with live highlighting.
Unix Timestamp ConverterEpoch seconds/milliseconds ↔ human dates in any zone.
Color Picker & ConverterHEX ↔ RGB ↔ HSL ↔ CMYK, with contrast checker.
HTML MinifierStrip comments and whitespace from HTML.
CSS MinifierCompress CSS: comments, whitespace, zero units, short hex.
JavaScript MinifierMinify and mangle JS with Terser, right in the browser.
Markdown to HTMLLive Markdown preview and clean HTML output.
Cron Expression ExplainerCron schedule in plain English + next run times.

Generators

View all →
QR Code GeneratorURL, text, Wi-Fi, vCard, email, phone. Colors, logo, PNG/SVG.
Password GeneratorStrong random passwords with a strength meter.
Passphrase GeneratorDiceware passphrases from the EFF long wordlist.
Barcode GeneratorCode 128, EAN-13 and UPC-A barcodes as PNG or SVG.
Username GeneratorCatchy usernames for games, socials and accounts.
Random Number GeneratorRandom integers or decimals in any range, unique or not.

Random & Decisions

View all →
Wheel SpinnerSpin a custom wheel of names, prizes or choices.
Random Name PickerDraw one or more names from a list, fairly.
Coin FlipHeads or tails, with a running tally.
Dice RollerRoll d4–d100, multiple dice, with modifiers like 2d6+3.
Random Team GeneratorSplit a list of people into balanced random teams.
Yes or No WheelAsk a question, spin for a yes, no (or maybe).

Unit Converters

View all →
Length Convertercm, m, km, inches, feet, yards, miles and more.
Weight Converterkg, lb, oz, g, stone, tons and more.
Temperature Converter°F, °C, Kelvin and Rankine.
Volume ConvertermL, liters, cups, fl oz, gallons (US & UK).
Area Convertersq ft, m², acres, hectares, sq miles.
Speed Convertermph, km/h, m/s, knots, Mach.
Time ConverterSeconds, minutes, hours, days, weeks, years.
Data Size ConverterKB, MB, GB, TB and KiB, MiB, GiB (binary).
Cooking Measurement ConverterCups ↔ grams by ingredient, tbsp, tsp, mL, oz.
Fuel Economy Convertermpg (US/UK) ↔ L/100 km ↔ km/L.
Pressure Converterpsi, bar, kPa, atm, mmHg, inHg.
Energy ConverterJ, kJ, cal, kcal, kWh, BTU, therms.

Quick conversions

All 64 →
Centimeters to InchesKilograms to PoundsFahrenheit to CelsiusMiles to KilometersMilliliters to Fluid ouncesCups to Grams (All-purpose flour)Feet to MetersCelsius to FahrenheitPounds to KilogramsMiles per gallon (US) to Liters per 100 km

Why UtilityBright?

Most “free online tools” upload what you paste to their servers, bury the tool under pop-ups, or ask you to sign up. UtilityBright tools are plain static pages: the JavaScript runs on your device, so JSON with customer data, Wi-Fi passwords in a QR code, or a confidential draft in the diff checker never leave your browser. Each page explains how the tool works and answers common questions.