
CloudConvert
iLovePDF
Smallpdf
Zamzar
iLoveIMG
Online Convert
TinyPNG
File Conversion in the Cloud

File Converter
CloudConvert
ConvertifyApp.net
FileConvertLab
Format Factory
My File Tool
Convert HEIC, WebP, PNG, JPG, RAW, PSD, TIFF and PDF files right in your browser. Merge, split and compress PDFs. Free, no upload, no sign-up.

Which is more popular?
Based on our record, Convertio seems to be more popular. It has been mentioned 54 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | convertio.co | formatmath.com |
| Pricing | — | |
| Company | — | Startup from Ukraine · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Convertio yet.
👋 I'm Vitaliy, and I built formatmath: a free file converter with no limits. Here's the idea behind it. Almost every online converter works the same way: you upload your photo or document to their server, they convert it there, and you download the result. That means your private files...
What each product offers, as listed by its team.


Possible disadvantages
No features have been listed yet.
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Convertio is recommended for users who need to convert files on the go, those with occasional conversion needs, and anyone who requires support for less common file formats. It's also suitable for individuals who prefer an intuitive online platform without the hassle of additional software installation.
No analysis of FormatMath yet.
Walkthroughs and reviews on video.
Convertio.Co : Convert Any File to Any Format Online
More videos
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Convertio and FormatMath.
FormatMath's answer:
Privacy and no limits. Popular converters like CloudConvert, Convertio, FreeConvert or Zamzar upload your files to their servers and limit free use by file size, number of conversions or waiting time. FormatMath converts locally, so private photos, scans and documents stay on your device, and you can batch-convert hundreds of files and download them as one ZIP for free. It also covers formats many converters skip, such as camera RAW (CR2, CR3, NEF, ARW, DNG and more), PSD, JPEG XL and CBZ.
FormatMath's answer:
Individual users (no accounts required, so we don’t track customers)
FormatMath's answer:
Every tool runs entirely in your browser. When you convert a file, it’s read and processed on your own device and saved straight back to it, so it’s never uploaded and our server never sees it. Because there’s no server-side processing to pay for, there are also no file size caps, no daily limits, no watermarks and no sign-up. It works offline once a page has loaded.
FormatMath's answer:
iPhone users who need HEIC photos as JPG for websites, forms and Windows PCs Photographers who need quick JPG previews from camera RAW files Office workers and students who merge, split, rotate or compress PDFs Privacy-conscious people who don’t want to upload personal files to a server Developers who need quick JSON, YAML, CSV, Base64, UUID or regex tools
FormatMath's answer:
I kept needing to convert iPhone photos and PDFs, and every online converter wanted me to upload private files to an unknown server, then limited me by file size or number of conversions. Modern browsers can decode and encode most formats themselves, so I built FormatMath to do all the work on the user’s device instead. It started with HEIC to JPG and grew into image, RAW, PDF, compression, photo-privacy and developer tools, in English and Ukrainian. I also run fee-math.com, a set of free fee calculators for online sellers built on the same no-upload principle.
FormatMath's answer:
TypeScript and Astro (static site) Cloudflare Workers and D1 (hosting, blog and anonymous usage stats) WebAssembly codecs (libheif for HEIC, jSquash for JPEG XL and WebP) pdf.js and pdf-lib for PDF rendering and editing Canvas and Web Workers for in-browser image processing fflate (ZIP), UTIF (TIFF), ag-psd (Photoshop files), exifr (metadata), yaml
Share your experience with using Convertio and FormatMath. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Convertio makes converting files quick and straightforward. It supports a wide range of formats, works entirely in the browser, and the interface is simple enough that you can get the job done in just a few clicks....
Users highlight Docpose.cloud’s reliability—no failed conversions even on rare formats. CloudConvert gets praise for quality tweaks but frustrates with daily resets. iLoveIMG is loved for extras like AI, but free...
Convertio is another tool with JPG to Word function. It ranks fourth in our list. It can provide a file conversion service of up to 100MB, but its JPG converters to editable Word require a membership.
We have no reviews of FormatMath yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Convertio has earned its reputation by handling just about any file type, not just images. If you sometimes need to switch an HEIC photo to JPG or even convert documents and audio, it’s a strong pick. - Source: dev.to / about 1 year ago
Online Converters: Websites like Squoosh or Convertio allow you to easily convert images to WebP. - Source: dev.to / about 2 years ago
Thanks for sharing! Just to also share my method, I use https://convertio.co for conversions, and then email the books to my [email@kindle.com](mailto:email@kindle.com) account. But I'm glad to hear there's a different solution, thanks! Source: over 3 years ago
Tracking FormatMath since Nov 2026.
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