All 296 free online tools

Every tool in 14 categories. Start with a category hub for the most useful tools, guides and answers, or search for something specific.

Calculators (43)

These calculators cover the sums people actually need to work out: a loan or mortgage payment, what savings grow to, whether a price leaves a healthy margin, a BMI, a due date or a shared bill.

Converters (43)

Converters translate a value or file from one format into another: a WebP picture into a JPG, miles into kilometers, a HEX color into HSL, a Unix timestamp into a date.

Developer Tools (33)

Small jobs that interrupt real work: pretty-print a minified API response, find the trailing comma that breaks a config file, read the claims inside a token from a failing login, see when a cron line will really fire, or convert CSS units.

Generators (46)

Generators turn a few inputs into something you can use straight away: a random password, a QR code, a PDF invoice, an APA reference, a CSS gradient or a set of fake records for testing.

Minifiers (13)

Minifying removes the characters a browser or parser does not need, such as comments, indentation and line breaks, so files download faster.

SEO Tools (20)

SEO tools help with the parts of search optimization you control on your own pages: how a title and description read in results, which URLs crawlers may visit, how structured data describes a page and whether headings, links and images follow good practice.

Text Tools (23)

Text tools handle the small, repetitive jobs around writing: counting words against a limit, fixing the case of a headline, removing the line breaks a PDF adds, comparing two drafts or sorting a pasted list.

Validators (15)

A validator checks something against a rule before anything depends on it: markup with an unclosed tag, a stylesheet browsers will quietly ignore, an email that can never deliver, or a card number with a mistyped digit.

Network Tools (6)

When a site will not load, email bounces after a DNS change, or a domain is about to lapse, you need an answer from outside your own network.

PDF Tools (19)

Most PDF jobs are small but awkward: a file too big for an upload form, three scans that should be one document, a page that came out sideways, a report that needs page numbers or a password.

Image Tools (16)

Quick image jobs rarely justify opening a full photo editor: shrinking a picture for an upload form, cropping to a square, hiding a number before sharing a screenshot, or opening an iPhone photo on a PC.

Social Media Tools (3)

Social media mockup tools draw a picture of a post or a conversation so you can judge the wording and layout before anything is published, and one of them makes a text-on-gradient graphic sized for Instagram Stories.

Video Tools (10)

Shrink a clip to fit an upload limit, cut out the dead air, join takes into one file, fix a sideways phone recording or pull the audio out as an MP3.

AI Tools (6)

These tools cover everyday language and document tasks: checking spelling and grammar, pulling text out of a photo, dictating notes, building prompts for chat and image generators, testing a resume against applicant-tracking rules and estimating whether writing reads like machine text.

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