# Randomly.online

> Free online tools that run entirely in your browser. Documents, images and PDFs
> are processed locally with JavaScript and are never uploaded to a server — there
> is no backend to send them to. No sign-up, no installs, no file size limits
> imposed by an upload step.

Every link below is a category hub listing the individual tools in that category.
All tools are client-side only. The single exception on the site is the multiplayer
Ludo game, which uses Firebase for matchmaking; it is not a document tool.

## Tool categories

- [PDF Tools](https://randomly.online/pdf-tools/all-pdf-tools): Merge, split, compress, crop, rotate, protect and convert PDFs in the browser using pdf-lib and pdf.js.
- [Image Tools](https://randomly.online/image-tools/all-image-tools): Resize, crop, compress and convert images, plus passport and ID photo generation, using Canvas and WebAssembly.
- [Calculator Tools](https://randomly.online/calculator-tools/all-calculator-tools): Percentage, loan, interest, health and everyday calculators.
- [Converter Tools](https://randomly.online/converter-tools/all-converter-tools): Unit converters for length, weight, temperature, area, volume, speed and data storage.
- [Text Tools](https://randomly.online/text-tools/all-text-tools): Case converters, counters, duplicate removal and text cleanup utilities.
- [Date & Time Tools](https://randomly.online/date-time-tools/all-date-time-tools): Clocks, timers, countdowns, date arithmetic and timestamp conversion.
- [Excel Tools](https://randomly.online/excel-tools/all-excel-tools): Read an .xlsx, .xlsm, .xls or .csv workbook in the browser and write it out as JSON, an HTML table, SQL INSERTs, a Markdown table or a chart, plus serial-date and column-letter converters. SheetJS runs client-side; the workbook is never uploaded.
- [Developer Tools](https://randomly.online/dev-tools/all-development-tools): Formatters, validators, encoders, hash generators and diff checkers.
- [SEO Tools](https://randomly.online/seo-tools/all-seo-tools): Meta tag, Open Graph, canonical tag and schema generators, plus SERP snippet previews. Paste-in only — none of them fetch a URL.
- [Random Generators](https://randomly.online/random-generator-tools/all-random-generators): Dice, coin flips, random numbers, list randomizers, team pickers and wheel spinners.

## About

- [Homepage](https://randomly.online/): Search across every tool on the site.
- [Dhruba Singha Roy](https://randomly.online/dhruba-singha-roy): Founder of Randomly.online. QA and automation engineer at Cognizant, working in Playwright, Selenium, Java and CI/CD. Previously founded the Animetype social app and led a Google Developer Student Club of 1,000+ members. Alumnus of Haldia Institute of Technology.
- [About Randomly.online](https://randomly.online/about-us): What the site is, who builds it, and why every tool runs client-side.
- [Contact](https://randomly.online/contact-us): Support and business enquiries.

## Every page, one per line

- [Full page index](https://randomly.online/llms-full.txt): all 432 indexable pages with a
  one-line description each, generated from the sitemaps. Use this to find a specific tool
  instead of opening a category hub and parsing it.

## Notes for AI agents and crawlers

- Tools are interactive client-side applications. The useful content for citation is
  the explanatory text, FAQs and how-to steps on each tool page, not the tool UI.
- Pages carry JSON-LD structured data (WebApplication, FAQPage, BreadcrumbList, HowTo).
- There is no API. Results cannot be obtained by fetching a URL with parameters.
- Files selected in a tool stay in the browser's memory and are never transmitted.