MEGA TOOLS
Free tools for everything you do online.
Convert, calculate, compress, format, generate and edit files with fast, free online tools. No sign-up, no watermarks, and most tools run entirely in your browser.
Popular tools
Browse all 62 →Format, indent and validate JSON with precise error locations.
Shrink image file size with a quality slider or a target size.
Combine several PDFs into one, in the order you choose.
Count words, characters, sentences and reading time as you type.
Reduce PDF file size, with an honest account of the trade-offs.
Work out an exact age in years, months and days.
Resize images by pixels or percentage, with aspect lock.
Generate strong random passwords or passphrases.
Convert JPG photos to lossless PNG files.
Convert PNG to JPG with adjustable quality and background.
Browse by category
Merge, split, compress, rotate and convert PDF documents.
Convert, compress, resize, crop and rotate images.
Format, validate, encode and test — JSON, Base64, regex and more.
Loans, percentages, dates, ages and everyday arithmetic.
Count, convert, sort, deduplicate and compare text.
Length, weight, temperature, speed, storage, time zones and number bases.
Passwords, hashes, UUIDs and random numbers.
Featured tools
Format, indent and validate JSON with precise error locations.
Shrink image file size with a quality slider or a target size.
Combine several PDFs into one, in the order you choose.
Count words, characters, sentences and reading time as you type.
Reduce PDF file size, with an honest account of the trade-offs.
Work out an exact age in years, months and days.
Resize images by pixels or percentage, with aspect lock.
Generate strong random passwords or passphrases.
Recently used
Your favourites
Why Mega Tools
Every tool actually works
There are no placeholders here and no "coming soon" pages. If a tool says it merges PDFs, it merges PDFs — and it is tested with real files before it ships. Each page also states what its tool cannot do, because knowing the limits saves more time than an optimistic description.
Your files usually stay on your device
The image and PDF tools run in your browser using the canvas API and client-side PDF libraries. Your files are never uploaded, which means they are faster, private by default, and usable on documents you would not send to a stranger's server. Where a tool has a real limitation — a browser that cannot encode WebP, a PDF that cannot be read without its password — it says so rather than failing quietly.
Fast, because nothing is loaded that you do not need
Each tool page is a real HTML document that ships only its own code. Opening the Age Calculator does not download the PDF libraries; opening the JSON Formatter does not download the image processing. There is no framework, no tracking pixel and no cookie banner, because there is nothing to consent to.
No account, no watermark, no limits
Nothing here asks you to sign up, and no output is stamped with a logo or capped at three uses a day. The site is free to use and supported by advertising, kept to placements that sit outside the tool itself so they never interfere with a control or a download button.
All tools
Search and filter →📄 PDF Tools
Combine several PDFs into one, in the order you choose.
Reduce PDF file size, with an honest account of the trade-offs.
Convert PDF pages into JPG or PNG images.
Split a PDF into separate files by range or page count.
Turn images into a single PDF, with page size options.
Extract the text content from a PDF.
Pull selected pages out of a PDF, or delete pages.
Rotate PDF pages permanently, all or selected.
🖼 Image Tools
Shrink image file size with a quality slider or a target size.
Resize images by pixels or percentage, with aspect lock.
Convert JPG photos to lossless PNG files.
Convert PNG to JPG with adjustable quality and background.
Crop images by dragging, with aspect ratio presets.
Convert images to and from WebP, with quality control.
Rotate images by 90° steps or any custom angle.
Convert an image to a Base64 data URI for CSS or HTML.
Mirror images horizontally or vertically.
⌨ Developer Tools
Format, indent and validate JSON with precise error locations.
Check whether JSON is valid and see exactly where it breaks.
Encode text or files to Base64, with URL-safe output available.
Decode Base64 back to text, with automatic URL-safe detection.
Convert Unix timestamps to dates and back, in any time zone.
Test regular expressions live, with highlighted matches and groups.
Generate cryptographically random UUIDs in bulk.
Convert colours between HEX, RGB, HSL and HSV with a live preview.
Percent-encode text for URLs, query strings and form data.
Decode percent-encoded URLs and break them into parts.
Strip whitespace from JSON and see how many bytes you saved.
Indent and tidy HTML markup, or minify it back down.
Beautify or minify CSS, with comment and string handling.
Re-indent JavaScript so nesting and blocks are readable.
🧮 Calculators
Work out an exact age in years, months and days.
Five percentage calculations in one place, with the working shown.
Full mortgage payment with tax, insurance and deposit.
Monthly payment, total interest and full amortisation schedule.
Body mass index in metric or imperial, with category ranges.
Convert between hourly, weekly, monthly and annual pay.
Project savings growth with regular contributions.
Add or remove sales tax at any rate, with the net split shown.
Find the sale price, the saving, and stacked discount totals.
Days between dates, or add and subtract days from a date.
Split a bill and work out the tip, per person.
Add, subtract and total durations in hours, minutes and seconds.
✍ Text Tools
Count words, characters, sentences and reading time as you type.
Convert text between eight cases, including programming styles.
Count characters against a limit, with a live countdown.
Compare two blocks of text and highlight what changed.
Turn titles into clean, URL-safe slugs.
Generate placeholder text by paragraph, sentence or word.
Strip repeated lines from a list, with case and trim options.
Sort lines alphabetically, numerically, by length or at random.
Reverse text by character, word or line.
⇄ Converters
Convert Celsius, Fahrenheit, Kelvin and Rankine.
Convert a time between any two time zones.
Convert between metric and imperial length units.
Convert between kilograms, pounds, ounces, stone and tonnes.
Convert between binary, octal, decimal, hex and any base 2–36.
Convert km/h, mph, m/s, knots and Mach.
Convert bytes, kilobytes, megabytes and their binary equivalents.
🔐 Security & Generators
Generate strong random passwords or passphrases.
Generate SHA-256, SHA-384 and SHA-512 hashes of text or files.
Generate random numbers in a range, with or without repeats.