74 tools · No sign-up
Free online tools that do one job well.
Format JSON, compress images, build UTM links, generate passwords and more. Most tools run in your browser, so your text and files stay on your device.
- No tool matches “”. Try a shorter word, or browse the categories below.
Popular:JSON FormatterImage CompressorWord CounterPassword GeneratorQR Code GeneratorUTM Builder
- In your browserText, images and files are processed on your device by default. Each tool page says exactly what happens to your data.
- No accountEvery tool is free to use without signing up. Nothing is locked behind a login.
- Plain explanationsEach tool explains how it works, what its limits are and when another approach is better.
Featured tools
The tools people reach for most often.
74 tools
- Word CounterCount words, characters, sentences, paragraphs and lines as you type, with reading and speaking time. Free, private and no sign-up.
- Character CounterCount characters with and without spaces, words, lines and UTF-8 bytes. Check text against meta title, SMS, X post or custom character limits.
- Case ConverterConvert text to UPPERCASE, lowercase, Title Case, Sentence case, alternating or inverse case, with correct Turkish İ/ı rules. Free and private.
- Find and ReplaceFind and replace text in your browser: match case, whole words or regular expressions with $1 capture groups. Shows the match count and regex errors.
- Text DiffCompare two texts line by line or word by word and see what was added and removed, marked with colour and +/− signs. Runs entirely in your browser.
- JSON FormatterFormat JSON with 2 spaces, 4 spaces or tabs, minify it, or sort keys. Syntax errors show the exact line and column. Runs in your browser.
- URL Encoder / DecoderPercent-encode or decode URLs and query values with encodeURIComponent or encodeURI rules, UTF-8 support, + as space and clear errors.
- Base64 Encoder / DecoderEncode text or files to Base64 and decode Base64 back to text or a downloadable file. UTF-8 safe, URL-safe variant, MIME line wrap. Runs locally.
- UUID GeneratorGenerate up to 1,000 random UUID v4 or time-ordered UUID v7 values with secure randomness. Copy or download them, and validate any UUID's version.
- Password GeneratorGenerate strong random passwords from 4 to 128 characters with your choice of letters, digits and symbols. Uses your browser's secure random generator.
- Image CompressorCompress JPEG, PNG and WebP images in your browser with a quality slider, format choice and optional downscaling. See the size saved before you download.
- Image ResizerResize JPEG, PNG and WebP images to exact pixel sizes or a percentage, with aspect-ratio lock, crop-to-fill or letterbox fit and common preset sizes.
- QR Code GeneratorCreate QR codes for links, text, Wi-Fi logins, contact cards, email, phone and SMS. Set colours, size and error correction; download PNG or SVG.
- UTM BuilderAdd utm_source, utm_medium, utm_campaign and other UTM tags to any link. Keeps existing parameters and #fragments, warns before overwriting, exports CSV.
- Meta Tag PreviewPreview how a page title and meta description may look in search results on desktop and mobile, with pixel-width estimates, character counts and warnings.
- Contrast CheckerCheck the WCAG 2.2 contrast ratio of text and background colours, see AA and AAA results for text and UI parts, and get the nearest passing colour.
- Percentage CalculatorWork out X% of a number, what percent one number is of another, percentage increase or decrease, adding or removing a percent, and reverse percentages.
- Unit ConverterConvert length, weight, temperature, area, volume, speed, time, data size, pressure, energy and fuel economy with exact factors. See every unit at once.
- Slug GeneratorTurn a title into a clean URL slug: accents and letters like ß, ğ, ł or đ are transliterated, with stop-word removal, separator and length options.
- Remove Duplicate LinesDelete repeated lines from a list while keeping the original order. Options to ignore case, trim spaces and drop empty lines. Runs in your browser.
- Sort LinesSort lines A–Z or Z–A with language-aware order and natural number sorting, sort by length, reverse the order or shuffle randomly. Free and private.
- Text CleanerClean pasted text: remove extra spaces, line breaks, tabs, HTML tags and invisible zero-width characters, and turn curly quotes into straight ones.
- Word Frequency CounterFind the most frequent words in any text, with counts and percentages, stop-word filtering and a minimum word length. Copy the table as CSV.
- Lorem Ipsum GeneratorGenerate lorem ipsum placeholder text by paragraphs, sentences or words, optionally starting with “Lorem ipsum dolor sit amet” or wrapped in <p> tags.
Browse by category
- 12Text ToolsCount, clean, convert and compare text.
- 18Developer ToolsFormat, validate, encode and convert data.
- 5Security ToolsPasswords, hashes and random secrets.
- 9Image ToolsCompress, resize, convert and crop images.
- 8Marketing & SEO ToolsUTM links, meta tags and structured data.
- 7Design ToolsColours, contrast and CSS helpers.
- 11CalculatorsPercentages, dates, units and money.
- 4Web UtilitiesTime zones, timers and browser info.
Recently added
- Age CalculatorOct 22, 2026
- Aspect Ratio CalculatorOct 22, 2026
- Base64 Encoder / DecoderOct 22, 2026
- BMI CalculatorOct 22, 2026
- Box Shadow GeneratorOct 22, 2026
- Case ConverterOct 22, 2026
From the guides
Short, practical explanations of the formats and techniques behind the tools.
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