124 free tools · privacy-first · no account

Tiny tools.
Big productivity.

A growing collection of tools for developers, writers, creators, and gamers. Fast, private, and free. The free utilities run in your browser, so your tool inputs are not uploaded or stored.

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Random Object Generator

Pick one or more random everyday objects for drawing, writing, classroom games, scavenger hunts, and creative prompts.

Random State Generator

Generate one or more random US states from the complete list of 50 states for geography games, travel ideas, lessons, and projects.

Shakespeare Translator

Turn modern English into a readable Shakespearean-style version using Early Modern pronouns, verbs, greetings, and period-flavored vocabulary.

Decision Maker

Paste your own options and let a private random choice picker decide, with no-repeat rounds, result history, and cryptographic browser randomness.

Truth or Dare Wheel

Spin for a clean truth or dare prompt, filter by prompt type and vibe, and avoid recent repeats for parties, classrooms, and family games.

Audiobook Speed Calculator

Calculate audiobook listening time at any playback speed from 0.5× to 3×, compare popular speeds, see time saved, and estimate a finish time.

XML to JSON Converter

Convert XML to readable JSON or JSON back to formatted XML, preserving attributes, text values, nested elements, and repeated sibling arrays.

Upside Down Text Generator

Turn normal text upside down with flipped Unicode letters, reversed order, and copy-ready output for captions, chats, puzzles, and designs.

Text & Writing

6 tools

Word Counter

Count words, characters, sentences, paragraphs, and reading time instantly.

Open

Character Counter

Count characters with and without spaces. Check platform limits for Twitter, Instagram & more.

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Reading Time Calculator

Calculate how long it takes to read any text. Words per minute, speaking time, and book reading estimates.

Open

Lorem Ipsum Generator

Generate placeholder text in paragraphs, sentences, or words for your designs and mockups.

Open

Text Case Converter

Convert text between uppercase, lowercase, title case, sentence case, camelCase, snake_case, and more.

Open

Audiobook Speed Calculator

Calculate audiobook listening time at any playback speed from 0.5× to 3×, compare popular speeds, see time saved, and estimate a finish time.

Open

Image & File

6 tools

Image to WebP

Convert JPG, PNG, and GIF images to WebP format for faster websites.

Open

WebP to PNG

Convert WebP images to PNG format with full transparency support.

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WebP to JPG

Convert WebP images to JPG format quickly and easily.

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JPG to PNG

Convert JPG/JPEG images to PNG format with lossless quality.

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Image Compressor

Compress images to reduce file size while maintaining quality.

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SVG Optimizer

Clean and minify SVG files. Remove metadata, comments, and unused attributes.

Open

Developer

20 tools

JSON Formatter

Format, beautify, minify, and validate JSON data instantly.

Open

Base64 Encoder/Decoder

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

Open

URL Encoder/Decoder

Encode or decode URLs and query parameters. Handle special characters safely.

Open

Color Converter

Convert colors between HEX, RGB, and HSL formats. Pick colors visually.

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Regex Tester

Test and debug regular expressions with real-time matching, highlighting, and group extraction.

Open

CSS Minifier

Minify CSS code to reduce file size. Remove comments, whitespace, and unnecessary characters.

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HTML Minifier

Minify HTML by removing comments, whitespace, and unnecessary tags.

Open

Unix Timestamp Converter

Convert Unix timestamps (epoch) to human-readable dates and back. Seconds or milliseconds. ISO 8601, UTC, local.

Open

QR Code Generator

Generate QR codes for URLs, text, WiFi, and more. Download as PNG.

Open

Markdown to HTML

Convert Markdown text to clean HTML. Live preview and copy-ready HTML output.

Open

JWT Decoder

Decode JWT tokens online. View header, payload, claims, and expiry. 100% client-side - your token stays private.

Open

UUID Generator

Generate UUID v4 (random) or UUID v7 (time-sortable). Bulk lists up to 1,000. Web Crypto powered.

Open

YAML ↔ JSON Converter

Convert between YAML and JSON formats. Instant, validated, bidirectional.

Open

Text Diff Checker

Compare two blocks of text side-by-side. See additions, removals, and changes highlighted.

Open

CSS Gradient Generator

Design beautiful linear and radial CSS gradients with live preview. Copy-ready code.

Open

Chmod Calculator

Calculate Linux/Unix chmod numeric and symbolic permissions with checkboxes. Common presets included.

Open

JSON to CSV

Convert JSON arrays to CSV instantly. Flatten nested objects, choose delimiter, download as .csv file.

Open

Cron Expression Generator

Build cron expressions with a visual editor. Get plain-English descriptions, common presets, and field reference.

Open

Text to CSV

Convert plain text, tab-separated, space-separated, or pipe-separated data to CSV. Auto-detects delimiter.

Open

XML to JSON Converter

Convert XML to readable JSON or JSON back to formatted XML, preserving attributes, text values, nested elements, and repeated sibling arrays.

Open

Text Style & Fun

87 tools

Subscript Generator

Convert text into Unicode subscript characters. Copy and paste tiny subscript letters and numbers anywhere.

Open

Superscript Generator

Convert text to Unicode superscript characters. Copy and paste small raised text anywhere.

Open

Big Text Generator

Generate bold Unicode big text. Copy and paste eye-catching headline letters anywhere.

Open

Small Caps Generator

Convert text to Unicode small caps. Copy and paste ALL CAPS-looking but smaller letters into any platform.

Open

Upside Down Text Generator

Turn normal text upside down with flipped Unicode letters, reversed order, and copy-ready output for captions, chats, puzzles, and designs.

Open

Fraction Generator

Convert ASCII fractions like 1/2 and 3/4 into Unicode fraction characters. Copy and paste ½, ⅓, ¾, ⅝.

Open

Unicode Text Generator

Generate every Unicode text style in one tool. Big, bold, small caps, subscript, superscript, mirror, bubble, fullwidth.

Open

Pig Latin Translator

Translate English to Pig Latin instantly. Moves leading consonants to the end and adds 'ay'.

Open

Medieval Translator

Translate modern English into medieval Old English: thou art, hath, doth, methinks and prithee, in light, classic or heavy style.

Open

Gen Z Translator

Translate normal English to Gen Z slang. fire, slay, mid, fr, no cap, lowkey, based, goated.

Open

Norse Translator

Translate common English to Old Norse vocabulary. Vinr, konungr, sverð, guð.

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Na'vi Translator

Translate common English words to Na'vi, the constructed language from James Cameron's Avatar.

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Al Bhed Translator

Convert English to Al Bhed cipher from Final Fantasy X. Standard substitution cipher.

Open

Enderman Translator

Encode English as Minecraft-style enchantment-table glyphs or decode Standard Galactic Alphabet text back to English.

Open

Runic Alphabet Converter

Convert English text into Elder Futhark runes. Authentic Old Norse-era alphabet.

Open

Gibberish Generator

Generate random gibberish text. Each word is replaced with a random consonant-vowel pattern of the same length.

Open

Fancy Text Translator

Try 19 playful language and text styles, including Shakespearean, Pig Latin, Medieval, Norse, Gen Z, Na'vi, Al Bhed, Enderman, Runic, and more.

Open

Gamertag Generator

Generate random cool gamertags. Adjective + noun + optional number combinations. Bulk lists, copy-ready.

Open

Xbox Name Generator

Generate random Xbox gamertags with classic xX...Xx, TTV, GG, HD styles.

Open

Discord Server Name Generator

Generate random Discord server names. Cozy Lounge, Chill Hideout, Lunar Sanctuary, Vapor Atelier.

Open

Dragonborn Name Generator

Generate authentic D&D Dragonborn names with first name and clan name. From official Player's Handbook lists.

Open

Random NBA Player Generator

Generate a random NBA player from current stars. LeBron, Curry, Jokić, Wembanyama, Tatum, and more.

Open

Random Celebrity Generator

Pick random famous people from film and TV, music, sports, or comedy with category and no-repeat controls.

Open

Random Name Generator

Generate random names: gamertags, Xbox names, Discord servers, Dragonborn, NBA players, celebrities. All in one.

Open

Random Zip Code Generator

Generate random US zip codes that follow real format patterns. Bulk batches for testing and mockups.

Open

Random US Address Generator

Generate realistic random US street addresses with city, state, and zip code. For testing and mockups.

Open

Random Canada Address Generator

Generate realistic random Canadian addresses with proper postal code format (A1A 1A1). Cities and provinces.

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Random UK Address Generator

Generate realistic random UK addresses with proper British postcode format (SW1A 1AA).

Open

Random Phone Number Generator

Generate random valid-format US phone numbers (+1 (XXX) XXX-XXXX). Realistic for testing.

Open

Random Canada Phone Number Generator

Generate random Canadian phone numbers with real Canadian area codes (416, 514, 604, 403, 902, etc.).

Open

Random Date Generator

Generate random dates between 1900 and 2100. Useful for testing, games, and decision making.

Open

Random Birthday Generator

Generate random birthdays for any age group, with the age, weekday and star sign for every date.

Open

Fake Data Generator

Generate fake data for software testing: US/Canada/UK addresses, phone numbers, dates, birthdays, zip codes.

Open

Fake Profile Generator

Generate complete fake user profiles: name, email, phone, address, birthday, occupation, company. Bulk batches, JSON/CSV export.

Open

Fake Person Generator

Generate random fake people with full identities: name, email, phone, address, occupation, age, gender.

Open

Random User Generator

Generate random users with complete profiles for software testing. Like randomuser.me but client-side.

Open

Pirate Translator

Translate English into pirate speak with light, classic, or dramatic modes, optional interjections, examples, and copy or share controls.

Open

Yoda Translator

Convert English into Yoda-style speech with gentle, classic, or strong sentence reordering.

Open

Morse Code Translator

Translate English to International Morse, decode Morse to English, play audio, and use the A–Z reference chart.

Open

Emoji Translator

Translate English text by adding matching emojis after recognized words. Doesn't replace - augments.

Open

Darija Translator

Translate common English phrases to Darija (Moroccan Arabic) in Latin transliteration.

Open

Patois Translator

Translate common English to Jamaican Patois (Patwa): wha gwaan, irie, bredren, criss.

Open

Anglo-Saxon Translator

Translate common English to real Anglo-Saxon (Old English) vocabulary: cyning, sweord, hāl.

Open

Shakespearean Insult Generator

Generate random Shakespearean insults from period-authentic word pools. Thou artless beef-witted lout!

Open

Italic Text Generator

Convert text to Unicode italic characters. Copy-paste italic text into apps that don't support formatting.

Open

Bold Italic Text Generator

Generate Unicode bold-italic text. Copy-paste into Instagram, Discord, TikTok - works without formatting.

Open

Script Text Generator

Generate Unicode script / cursive text. Copy-paste fancy script letters anywhere.

Open

Fraktur / Gothic Text Generator

Generate Unicode Fraktur (Gothic / Blackletter) text. Copy-paste medieval-style script anywhere.

Open

Gothic Text Generator

Generate Unicode Gothic / Blackletter / Fraktur text. Medieval and metal aesthetics.

Open

Double-Struck Text Generator

Generate Unicode double-struck (blackboard bold) text. Math-style hollow letters.

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Monospace Text Generator

Generate Unicode monospace text. Code-style fixed-width letters anywhere.

Open

Random Disney Movie Generator

Generate a random Disney movie to watch tonight. From all classic and modern Disney/Pixar films.

Open

Random Fruit Generator

Generate random fruits from 60+ varieties. For games, recipes, grocery decisions, learning.

Open

Random Dinosaur Generator

Generate random dinosaurs from 50 real species. T-Rex, Velociraptor, Brachiosaurus, more.

Open

Random Pokémon Generator

Generate random Pokémon from a curated list of fan-favorites and starters.

Open

Random Anime Character Generator

Generate random anime characters from popular series. Naruto, One Piece, Demon Slayer, Jujutsu Kaisen, more.

Open

Random Naruto Character Generator

Pick a random Naruto character: Team 7, the Sannin, Akatsuki, and more.

Open

Random One Piece Character Generator

Pick a random One Piece character: Straw Hats, Warlords, Emperors, and more.

Open

Random JJK Character Generator

Pick a random Jujutsu Kaisen character: sorcerers, curses, and special grades.

Open

Random Demon Slayer Character Generator

Pick a random Demon Slayer character: the core four, all nine Hashira, and demons.

Open

Random Dragon Ball Character Generator

Pick a random Dragon Ball character: Z Fighters, villains, and gods.

Open

Random MHA Character Generator

Pick a random My Hero Academia character: Class 1-A, pro heroes, and villains.

Open

Random AoT Character Generator

Pick a random Attack on Titan character: Scouts, Warriors, and Titans.

Open

Random Bleach Character Generator

Pick a random Bleach character: Soul Reapers, Espada, and Karakura crew.

Open

Random NFL Team Generator

Generate a random NFL team from all 32 franchises. Includes city + team name.

Open

Wheel of NFL Teams

Spin a visual wheel to pick one of all 32 current NFL franchises, with a result history and immediate-repeat protection.

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Random MLB Team Generator

Generate a random MLB team from all 30 franchises. For fantasy baseball, trivia, fan content.

Open

Random Restaurant Type Generator

Generate a random restaurant cuisine type to help decide where to eat.

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Random Dinner Idea Generator

Generate random dinner ideas. Solves 'what should I cook tonight?' with 45+ classics.

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Yes or No Generator

Random yes/no decision maker. Coin flip for any question.

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Coin Flip

Online coin flip. Random Heads or Tails for any decision.

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Random Letter Generator

Generate random letters A-Z. For games, exercises, classroom activities.

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Random Color Generator

Generate random color names from a curated palette. 50+ named colors.

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Random Country Generator

Generate a random country. For geography quizzes, travel inspiration, trivia.

Open

Random Emoji Generator

Generate random emojis for any use. 100+ emojis across categories.

Open

Random Hex Color Generator

Generate random hex color codes (#RRGGBB). Bulk batches for design palettes.

Open

Random MAC Address Generator

Generate random MAC addresses in standard XX:XX:XX:XX:XX:XX format. For network testing.

Open

Random IP Address Generator

Generate random IP addresses (IPv4 or IPv6). For network testing, mock data, learning.

Open

Random IPv4 Generator

Generate random IPv4 addresses. Standard X.X.X.X format, avoids reserved private ranges.

Open

Random IPv6 Generator

Generate random IPv6 addresses in standard 8-group hex format.

Open

Random Company Name Generator

Generate random company names. Prefix + suffix combinations for startup brainstorming.

Open

Random Username Generator

Generate random usernames for any platform. Cool, modern, gaming, social styles.

Open

Random Object Generator

Pick one or more random everyday objects for drawing, writing, classroom games, scavenger hunts, and creative prompts.

Open

Random State Generator

Generate one or more random US states from the complete list of 50 states for geography games, travel ideas, lessons, and projects.

Open

Shakespeare Translator

Turn modern English into a readable Shakespearean-style version using Early Modern pronouns, verbs, greetings, and period-flavored vocabulary.

Open

Decision Maker

Paste your own options and let a private random choice picker decide, with no-repeat rounds, result history, and cryptographic browser randomness.

Open

Truth or Dare Wheel

Spin for a clean truth or dare prompt, filter by prompt type and vibe, and avoid recent repeats for parties, classrooms, and family games.

Open

SEO

3 tools

Keyword Density Checker

Analyze keyword density, frequency, and distribution in your content for better SEO.

Open

Meta Tag Generator

Generate optimized meta tags for better search engine visibility.

Open

Slug Generator

Convert any text into clean, SEO-friendly URL slugs with proper hyphens and lowercase.

Open

Security

2 tools

Password Generator

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

Open

Hash Generator

Generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes from any text.

Open

Why 3STF Tools

Tools that respect your time and privacy.

Most online tools are slow, covered in ads, behind signup walls, or secretly collecting your data. We built 3STF Tools for one simple reason: tools should just work. Every existing free utility runs entirely in your browser. Your text, images, and passwords never leave your device when using those tools.

Lightning Fast

Static-rendered pages, instant interactions. No waiting for servers.

Truly Private

Free-tool inputs stay on your device. Most work offline after the first visit.

Free Tools Stay Free

No signup wall or paywall on the browser tools. Use every one of them without an account.