
Hoverify
CSS Scan Pro
Tailscan for Tailwind CSS
Plasmo
CSS Scan
CSS Peeper
Screen Ruler
14-in-1 browser extension developers and designers love.

calculator.net
Omni Calculator
Material Unit Converter
10015.io
IT Tools
CodeBeautify
iLovePDF
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.
Which is more popular?
Utilorax might be a bit more popular than SuperDev Pro. We know about 1 link to it since March 2021 and only 1 link to SuperDev Pro.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | superdevpro.com | utilorax.com |
| Pricing | ||
| Platforms | ||
| Company | 2022 | Startup from Pakistan · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


SuperDev Pro is a 14-in-1 browser extension 🧩 that helps developers and designers find and fix UI issues on any website 3x faster, used by 6000+ professionals around the world to ship world-class websites.
Utilorax is a collection of 1,100+ free online tools: 116 calculators, 652 unit converters, and 394 text, developer, SEO, image, PDF and template utilities. Everything runs inside the browser. Files are processed locally and are never uploaded to a server, so PDFs, images and documents stay on...
What each product offers, as listed by its team.


Walkthroughs and reviews on video.
No SuperDev Pro videos yet. You could help us improve this page by suggesting one.
Utilorax — Free Online Tools
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing SuperDev Pro and Utilorax.
Utilorax's answer:
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.
Utilorax's answer:
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.
Utilorax's answer:
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.
Utilorax's answer:
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.
Utilorax's answer:
Share your experience with using SuperDev Pro and Utilorax. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


A chrome extension of 17 tools(https://superdevpro.com) in one and my plan to add 30+ tools by this year. - Source: Hacker News / about 1 year ago
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... - Source: dev.to / 26 days ago
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