Software Alternatives & Startups

Officially verified details Utilorax

1,164 free online calculators, converters and tools — finance, health & math calculators, 652+ unit converters, plus text, PDF, image, SEO and QR tools. Fast, private, no sign-up.

Utilorax

Utilorax Reviews and Details

This page is designed to help you find out whether Utilorax is good and if it is the right choice for you.

Screenshots and images

  • Homepage //
    2026-08-04
  • Calculators Hub //
    2026-08-04
  • Image Resizer //
    2026-08-04
  • PDF tools //
    2026-08-04
  • Converters //
    2026-08-04
  • QR Barcodes //
    2026-08-04
  • Blog //
    2026-08-04

Features & Specs

  1. Tools

    1,162 — 116 calculators, 652 unit converters, 394 utilities

  2. Processing

    Client-side — files never leave the browser

  3. Account

    Not required for any tool

  4. Offline Mode

    Installable as a PWA, works without a connection

  5. Languages

    English, Spanish, French, Portuguese, Chinese

  6. Developer API

    256+ JSON endpoints, 500 requests/month on the free key

  7. Dark Mode

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Questions & Answers

As answered by people managing Utilorax.
  1. What makes Utilorax unique?

    Two things. First, most of the tools never send your data anywhere — 63 of the file tools run entirely in your browser, and the ones that do need a server (certain PDF and Office conversions) delete the file the moment they are done. Second, the same operations are available as a free JSON API with 203 endpoints, which almost no free tools site offers.

    Add to that 1,162 tools in one place, no account for anything, five languages, and it installs as a PWA and keeps working offline.

  2. Why should a person choose Utilorax over its competitors?

    The competitors listed here are each good at one thing — Calculator.net and Omni for calculators, IT Tools and CodeBeautify for developer utilities, 10015.io for the everyday mix. Utilorax covers that whole span in one place, so you are not learning a new site for each small job.

    The real difference is the developer API. If you need a conversion or a hash once, use the page; if you need it a thousand times, the same thing is a JSON endpoint with a free key. And nothing asks you to sign up first.

  3. How would you describe the primary audience of Utilorax?

    Two groups. Most visitors want a single answer and then to leave — convert a unit, work out a loan payment, compress a PDF — and they should not have to create an account for that.

    The second group is developers, who reach the same operations through the JSON API instead of the page. The site is in English, Spanish, French, Portuguese and Chinese, so a good part of the audience is not reading in English.

  4. What's the story behind Utilorax?

    It came out of irritation. I kept opening a different site for every small job — one for a unit conversion, one to compress an image, one to count words — and most of them wanted an upload or a sign-up for something my own browser could do perfectly well.

    So I built the whole set in one place and made the browser do the work wherever it could. It went live on 29 July 2026 and is run from Karachi.

  5. Which are the primary technologies used for building Utilorax?

    • PHP 8.2 on the server
    • Vanilla JavaScript, no front-end framework
    • WebAssembly and the Canvas API for in-browser audio, image and font processing
    • MySQL
    • Progressive Web App with a service worker for offline use

Videos

Utilorax — Free Online Tools

Social recommendations and mentions

We have tracked the following product recommendations or mentions on various public social media platforms and blogs. They can help you see what people think about Utilorax and what they use it for.
  • My robots.txt check passed for six days on an attacker's robots.txt
    Preg_match_all('~^\s*Sitemap:\s*(\S+)~mi', $robots, $sm); $ours = 'https://utilorax.com/sitemap.xml'; $foreign = array_filter($sm[1], fn($u) => rtrim($u) !== $ours); If (!in_array($ours, $sm[1], true)) { $problems[] = 'robots.txt does not list our sitemap'; } If ($foreign) { $problems[] = 'robots.txt lists sitemaps that are not ours'; } If (is_file($webRoot . '/robots.txt')) { ... - Source: dev.to / 10 days ago

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Utilorax discussion

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Is Utilorax good? This is an informative page that will help you find out. Moreover, you can review and discuss Utilorax here. The primary details have been verified within the last quarter. So they could be considered up to date. If you think we are missing something, please use the means on this page to comment or suggest changes. All reviews and comments are highly encouranged and appreciated as they help everyone in the community to make an informed choice. Please always be kind and objective when evaluating a product and sharing your opinion.