Convert Any File, Instantly
157 formats. 2,600+ conversion pairs. Free, no signup required.
Popular Conversions
The most frequently used file conversions
A free file converter that takes file conversion seriously
MegaConvert handles the boring-but-important problem of getting a file from one format to another, without requiring an account, charging a subscription, embedding watermarks in your output, or selling your data to advertisers. The tool is genuinely free, the upload limits are generous, and the conversion engines are the same industry-standard libraries used in professional production pipelines (FFmpeg for audio and video, ImageMagick and libvips for images, LibreOffice for documents, and so on).
The site supports 157+ file formats across eleven categories — images, audio, video, documents, data, fonts, archives, ebooks, 3D models, subtitles, and vector graphics — for a total of over 2,600 supported conversion pairs. If you have a file in one of those categories and you need it in another, the conversion is almost certainly available here.
Files are uploaded over HTTPS, processed in isolated server environments, and automatically deleted within one hourof upload. No account is required, so the upload is not associated with a personal identity. We don't read, index, store, or sell your file contents.
Browse by Category
Explore all supported format categories
Why use MegaConvert
Genuinely free
No paywalls, no upsells, no “upgrade to remove watermark” nag screens. The site is advertising-supported, which lets us keep the core service free for everyone.
No account required
Upload, convert, download. No email address, no password, no marketing emails. The fewer accounts the web demands, the better.
Files deleted within an hour
Your file is processed and deleted, automatically. We do not maintain any permanent archive of uploads or conversions, and we do not access file contents.
Industry-standard tools
We use the same open-source conversion libraries that professional video producers, photographers, and developers rely on — battle-tested code, not amateur reimplementations.
Per-pair documentation
Every converter page includes specific guidance on the conversion: what survives, what doesn't, common gotchas, and when not to convert. Not just a generic upload form.
In-depth guides
Our blog covers format choice, conversion best practices, and the practical knowledge you need to use these files in real workflows.
From the guides
Practical writing on file formats, conversion trade-offs, and the choices behind picking one format over another.
Convert PDF to DOCX: when it works, when it doesn't, and how to get the cleanest result
PDF-to-DOCX conversion is one of the most-requested document conversions on the web — and one of the most misunderstood. A practical guide to what actually transfers, what breaks, and how to handle each case.
YAML vs JSON: which to use when, and what changes during conversion
YAML and JSON solve the same problem in nearly opposite ways. A practical guide to when to pick each, what conversion preserves and what it doesn't, and the gotchas to know about.
Converting HEIC to JPEG without losing more quality than you have to
HEIC saves space on iPhones but breaks compatibility almost everywhere else. A guide to converting HEIC to JPEG with minimal quality loss, keeping metadata, and choosing the right encoder settings.
WebP vs AVIF vs JPEG: choosing image formats for the modern web
JPEG is universal but old. WebP is everywhere and good. AVIF is best in class but newer. A practical comparison of the three modern web image formats — when to pick each, what they cost in compatibility, and how to ship safely with fallbacks.
PowerPoint to PDF: keeping fonts, tables, and (some of) your animations intact
Converting PowerPoint to PDF looks simple but has a few real gotchas. A practical guide to embedding fonts, preserving tables, handling animations, and producing a PDF that looks identical to your deck on every device.
Lossless vs lossy compression: what the words actually mean and why it matters
Lossless compression preserves every bit of the original; lossy compression throws bits away to save space. A foundational guide to the difference, the formats in each camp, and the practical rules of thumb for when to use which.
Frequently asked questions
What does MegaConvert do?
MegaConvert is a free online file converter that supports over 2,600 conversion pairs across 11 format categories. Upload a file, pick a target format, and download the converted result — typically in seconds, with no account required.
What's the catch?
There isn't one. The service is supported by advertising, which keeps it free for users. We don't sell data, we don't sell premium tiers, we don't watermark output, and we delete files within an hour of upload.
How private is the conversion?
Files are uploaded over HTTPS, processed in isolated server environments, and automatically deleted within an hour. We don't read, index, or store file contents. No account is required, so uploads aren't tied to a personal identity. See our privacy policy for full detail.
Why is my file size limit 100 MB?
100 MB covers the vast majority of real-world conversions while keeping the service free and fast. For larger files (typical for high-resolution video or uncompressed audio archives), email christopherfloied@outlook.com — we can sometimes accommodate larger uploads for legitimate use cases.
Why does the site recommend I sometimes shouldn't convert?
Because it's the truth. Some conversions throw away quality, some don't add value, and some are genuinely the wrong move for the workflow at hand. We'd rather tell you when not to convert than push you toward an output that doesn't help.
Can I link to or recommend MegaConvert from my own site?
Yes, absolutely — and we'd appreciate it. See our /linktous page for badges and recommended link formats. There's no affiliate program; just a free service that we're happy to have more people use.
Browse all conversions
1,896+ conversion pairs across 11 categories. Pick a category to see its conversions in full.