CloudConvert VS Sunasty
Compare CloudConvert VS Sunasty and see what are their differences
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CloudConvert
Convertio
iLovePDF
Smallpdf
Zamzar
Online Convert
iLoveIMG
TinyPNG
Sunasty
iLovePDF
TinyPNG
Smallpdf
ToolKnit
Convertio
iLoveIMG
123apps
Sunasty is a suite of 130+ free utilities for everyday file tasks: PDF (merge, split, compress, sign, unlock), images (compress, resize, crop, redact, HEIC to JPG), video and audio (compress, convert, trim, extract audio, screen recording), plus developer, date and calculator tools.
The difference is structural: every tool runs entirely in your browser using WebAssembly (FFmpeg, modern image codecs, qpdf). Files are never uploaded to a server, which you can verify in your browser's network tab. Tools keep working offline once loaded. No account, no file size tiers, no daily quotas. Available in 28 languages.
CloudConvert SunastyCloudConvert is recommended for users who regularly need to convert files between different formats, whether for personal, educational, or professional purposes, and prefer an online solution that doesn't require software installation.
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Sunasty's answer:
The site is statically generated with Astro and TypeScript, with lightweight Preact islands for interactivity. The heavy lifting runs client-side in Web Workers through WebAssembly builds of proven engines: FFmpeg for video and audio, qpdf and pdf-lib for PDF, the Squoosh codecs (MozJPEG, OxiPNG, WebP, AVIF) for images, and Tesseract for OCR. There is no application backend at all: the server only delivers static files.
Sunasty's answer:
The privacy is structural, not a policy promise: every tool runs entirely in your browser through WebAssembly, so your files never leave your device. You can verify it yourself by opening the DevTools network tab while using any tool: no request carries your file, and everything keeps working offline once the page has loaded. Combined with 140+ tools, no account, no quotas and 28 languages, that architecture is the product.
Sunasty's answer:
Most popular alternatives (iLovePDF, Smallpdf, CloudConvert, TinyPNG) process files on their servers and monetize through limits: daily quotas, file size caps, subscriptions. With Sunasty there is no upload wait, no copy of your document on someone else's machine, and no counter to unlock, because the work happens on your own hardware. And when a competitor genuinely is the better choice (for example server-side conversion of PDF to editable Word, which a browser cannot do faithfully), our comparison pages say so.
Sunasty's answer:
Anyone who handles files day to day: people compressing a PDF to fit an application portal or an email cap, gamers and creators trimming and shrinking clips for Discord, anyone blurring a name on a screenshot before sharing it, developers formatting JSON or testing regexes, and privacy-conscious users working with contracts, IDs or anything confidential that should never transit through a third-party server.
Sunasty's answer:
Sunasty is built by a solo developer in France. The trigger was a familiar frustration: every "free" online tool for a 30-second file task wanted an upload to an unknown server, an account, or a subscription to lift an artificial limit. Modern browsers can do that work themselves thanks to WebAssembly, so Sunasty was built the other way around: the file never leaves your device, by architecture. The amber cat in the logo is the developer's actual cat.
Sunasty's answer:
Sunasty is a free consumer tool, so there are no enterprise contracts to name, and since there are no accounts and files never reach us, we genuinely cannot tell who uses it. It is used by individuals worldwide in 28 languages, which is exactly how a privacy tool should work.
Based on our record, CloudConvert seems to be a lot more popular than Sunasty. While we know about 43 links to CloudConvert, we've tracked only 1 mention of Sunasty. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
General converters like CloudConvert handle dozens of formats including PDFโMarkdown. They're convenient when you already use them for other conversions. - Source: dev.to / about 2 months ago
I tried 3 options, for converting a DWG to a DXF -- FreeCAD, CloudConvert and LibreDWG, and I will be Talking about how all 3 options failed for me. - Source: dev.to / 2 months ago
Convert the PDF to an image using a tool like pdf2png.com or CloudConvert. - Source: dev.to / 9 months ago
Cloudconvert.com โ Convert anything to anything. Two hundred eight supported formats including videos and gifs. - Source: dev.to / over 2 years ago
I used https://cloudconvert.com/ and converted the mp4 I downloaded from https://twittervideodownloader.com/ to mp4 again and it worked. The issue makes no sense but this is a temporary solution. Source: over 2 years ago
Have you checked out https://sunasty.com. - Source: Hacker News / about 2 months ago
Convertio - File Conversion in the Cloud
iLovePDF - Premium online PDF tool set
TinyPNG - Make your website faster and save bandwidth. TinyPNG optimizes your PNG images by 50-80% while preserving full transparency!
Smallpdf - PDF document management and conversion suite
Zamzar - Free conversion online of many type of documents (images, text, video, audio...
ToolKnit - 90+ free online tools that never upload your files.