
Tailwind UI
DaisyUI
Float UI
Tailwind CSS
TailGrids
Preline UI
Keep Design System
Build UI interfaces and simplify the process of integrating into live websites with Tailwind CSS

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?
Based on our record, Utilorax seems to be more popular. It has been mentioned 1 time since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | flowbite.design | utilorax.com |
| Pricing | — | |
| Platforms | — | |
| Company | — | Startup from Pakistan · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of FlowBite yet.
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.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of Utilorax yet.
Walkthroughs and reviews on video.
The ULTIMATE Figma UI Kit (Flowbite)
Utilorax — Free Online Tools
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing FlowBite 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 FlowBite and Utilorax. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Flowbite is a UI component library built on top of Tailwind CSS, offering interactive elements such as dropdowns, modals, and navbars to enhance user interfaces.
Flowbite has over 450 components; the documentation has component code for HTML with options to install as a library for the most popular frameworks. The project has over 2,800 stars on GitHub and gets around 50,000...
In addition to hundreds of developed pages and Tailwind components, such as application UI, marketing UI, and e-commerce layouts, Flowbite’s pro edition includes a Figma design system based on Tailwind CSS utility...
We have no reviews of Utilorax yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Tracking FlowBite since Sep 2021.
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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