FormatMath
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.
A startup from Ukraine.
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.
A startup from Ukraine.
This page is designed to help you find out whether FormatMath is good and if it is the right choice for you.
👋 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 sit on someone else's computer, and to pay for those servers most sites add file size caps, daily limits, watermarks or a sign-up wall.
formatmath works differently. Every tool on the site runs inside your browser, using code that loads with the page. When you drop a file, it's read and converted on your own device, and the result is saved straight back to it. Nothing is uploaded, so your files never leave your phone or computer, and our server never sees them. Once the page has loaded, it even works offline.
Because there's no server doing the heavy lifting, there's also no reason to limit you: • Free, no account, no watermarks, no daily quota • Batch mode: drop a whole folder and download everything as one ZIP • iPhone HEIC, camera RAW (Canon, Nikon, Sony, Fujifilm and more), WebP, AVIF, PSD, TIFF and 50+ formats • PDF tools: merge, split, rotate, compress, PDF ↔ images • Photo privacy: view or remove EXIF and GPS, and check whether an image says it was AI-generated • Dev tools: JSON ↔ YAML/CSV, Base64, UUID generator, regex tester
The only real limit is your device's memory, so very large files work best on a computer.
It's in English and Ukrainian, and works on phones too. I'd love your feedback: which formats or tools should I add next, and did anything fail to convert for you? I read every comment. 🙏
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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.
Individual users (no accounts required, so we don’t track customers)
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.
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
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.
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
We have collected here some useful links to help you find out if FormatMath is good.
Check the traffic stats of FormatMath on SimilarWeb. The key metrics to look for are: monthly visits, average visit duration, pages per visit, and traffic by country. Moreoever, check the traffic sources. For example "Direct" traffic is a good sign.
Check the "Domain Rating" of FormatMath on Ahrefs. The domain rating is a measure of the strength of a website's backlink profile on a scale from 0 to 100. It shows the strength of FormatMath's backlink profile compared to the other websites. In most cases a domain rating of 60+ is considered good and 70+ is considered very good.
Check the "Domain Authority" of FormatMath on MOZ. A website's domain authority (DA) is a search engine ranking score that predicts how well a website will rank on search engine result pages (SERPs). It is based on a 100-point logarithmic scale, with higher scores corresponding to a greater likelihood of ranking. This is another useful metric to check if a website is good.
The latest comments about FormatMath on Reddit. This can help you find out how popualr the product is and what people think about it.
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Is FormatMath good? This is an informative page that will help you find out. Moreover, you can review and discuss FormatMath 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.
