Every small web tool, one calm workspace

57 utilities for SEO, content, images, PDFs and developers. The local ones run entirely in your browser — your files never leave the tab.

Word Counter Case Converter Text Summarizer RGB to HEX Image Compressor Image Resizer Keyword Density Checker Robots.txt Generator

Text & AI Tools

Count, convert, condense and inspect written content. Everything that can be computed locally runs in your browser; anything that needs a language model states that up front.

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Word CounterCount words, characters, sentences and paragraphs, estimate reading time and see the keyword frequency of any passage.Case ConverterSwitch text between UPPER CASE, lower case, Title Case and Sentence case instantly.Text SummarizerExtractive summariser that scores sentences by keyword weight and position, then returns the strongest ones verbatim.Text to BinaryEncode any UTF-8 text into space-separated 8-bit binary octets.Binary to TextDecode 8-bit binary back into readable UTF-8 text, with validation of malformed input.Reverse TextFlip a string, its words or its line order — useful for quick puzzles and data cleanup.Line Break RemoverStrip hard wraps from pasted text while keeping paragraph boundaries intact.

Design Utilities

Colour maths and CSS scaffolding for interface work: convert between colour spaces, build palettes and copy production-ready declarations.

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RGB to HEXConvert red/green/blue channel values into a hexadecimal colour code with a live swatch.HEX to RGBTurn a 3 or 6 digit hex colour into RGB, HSL and CSS-ready values.Colour Palette GeneratorBuild analogous, complementary and monochrome palettes from a single base colour.CSS Gradient GeneratorCompose two-stop linear gradients and copy the CSS declaration.Box Shadow GeneratorDial in offset, blur, spread and colour, preview the result and copy the CSS.Border Radius GeneratorPreview per-corner radii on a live element and copy the shorthand declaration.

Image Tools

Compress, resize, crop and convert raster images with the Canvas API. Files are decoded in the browser tab and never uploaded.

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Image CompressorRe-encode JPG, PNG or WebP files at a quality you choose and compare before/after file size.Image ResizerResize images to exact pixel dimensions with optional aspect-ratio lock and instant preview.Crop ImageTrim an image to a rectangular selection using numeric crop controls and a live overlay.PNG to JPGFlatten PNG transparency onto a background colour and export a JPEG at your chosen quality.JPG to PNGConvert JPEG photos to lossless PNG for editing pipelines that need an alpha channel.Favicon GeneratorProduce 16, 32, 48, 180 and 512 pixel icons from one square image, plus the HTML link tags.Image to Base64Inline a small image as a data URI for CSS or email templates.

Keyword Tools

Analyse the keywords you already have and connect a metrics provider for volume, difficulty and ranking data.

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Keyword Density CheckerMeasure one, two and three word phrase density in pasted copy and spot over-optimisation.

Website Management

Generate the files and directives that control how crawlers move through a site, plus link housekeeping helpers.

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Robots.txt GeneratorCompose crawl directives per user-agent, add sitemap references and download a valid robots.txt.XML Sitemap GeneratorTurn a pasted list of URLs into a valid sitemap.xml with changefreq, priority and lastmod.HTML Viewer & SanitizerPreview HTML with scripts, event handlers and unsafe URLs stripped, and inspect the cleaned markup.URL ShortenerCreate short links that resolve through this workspace, stored locally in your browser for the demo.

Meta Tag Tools

Write and audit the head markup that decides how a page looks in search results and social previews.

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Meta Tag GeneratorGenerate title, description, robots, canonical and viewport tags with live length guidance.Open Graph GeneratorBuild og: tags with a preview card so shared links look right on social platforms.Twitter Card GeneratorProduce summary and large-image card markup with validation of required fields.Canonical Tag GeneratorEmit a normalised canonical link element and catch common self-reference mistakes.

PDF Tools

Merge, split, rotate and convert documents locally with pdf-lib and pdf.js. Nothing is uploaded to a server.

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Merge PDFCombine several PDFs into one document, in the order you arrange them, entirely in the browser.Split PDFExtract a page range into a new PDF without uploading the original.Rotate PDFRotate every page or a selected range by 90, 180 or 270 degrees.Delete PDF PagesRemove unwanted pages and download the trimmed document.PDF to JPGRender PDF pages to JPEG images in the browser with pdf.js and download them individually.JPG to PDFPlace one or more JPG/PNG images onto PDF pages sized to each image.PDF Page CounterRead page count, page sizes and document metadata locally.

Developer Tools

Encoders, formatters, hashes and identifiers for day-to-day engineering work, all computed client-side.

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JSON Formatter & ValidatorPretty-print or minify JSON, surface parse errors with position, then copy or download the result.Base64 EncoderUTF-8 safe Base64 encoding for text payloads and tokens.Base64 DecoderDecode Base64 back to text with clear errors on invalid input.URL Encoder / DecoderPercent-encode or decode query strings and path segments.Hash GeneratorCompute SHA-1, SHA-256 and SHA-512 digests with the Web Crypto API.UUID GeneratorGenerate cryptographically random version 4 identifiers in bulk.HTML MinifierCollapse whitespace and comments from markup while keeping pre and textarea content intact.CSS MinifierStrip comments and redundant whitespace from stylesheets.

Calculators

Deterministic maths for dates, durations, money and everyday percentages.

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Age CalculatorCalculate exact age in years, months and days, total elapsed units and the next birthday countdown.Hours CalculatorAdd up shift durations with break deductions and get decimal hours for invoicing.Percentage CalculatorSolve percentage of a number, what percent one value is of another, and percentage change.Average CalculatorMean, median, mode, range and standard deviation for a list of numbers.Loan CalculatorMonthly repayment, total interest and payoff totals for an amortising loan.Sales Tax CalculatorAdd or remove tax from a price at any rate, with the tax portion shown separately.BMI CalculatorBody mass index in metric or imperial units with the standard category bands.

Miscellaneous Tools

Generators and converters that do not belong anywhere else but get used constantly.

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Password GeneratorCreate random passwords with configurable length and character classes using Web Crypto.Random Number GeneratorDraw unbiased random integers in a range, with optional uniqueness.Unix Timestamp ConverterConvert between Unix seconds, milliseconds and human-readable ISO dates.Roman Numeral ConverterTranslate between Arabic numbers and Roman numerals in both directions.Placeholder Text GeneratorGenerate neutral English filler paragraphs for layout testing, with a word budget you set.

Simple pricing

Every tool stays free to try. Upgrade when you want unlimited runs, saved dashboards and shared tracking for your team.

Pro

$12/ month

For one person running SEO on their own site.

Unlimited runs on every tool
Saved SEO dashboards and progress boards
Priority processing on larger files

Team

$39/ month

For agencies and in-house teams up to 10 people.

Everything in Pro for up to 10 teammates
Shared rank, backlink and progress tracking
Team-wide site audit reports

30-day money-back guarantee. Read our refund policy