Convert any file format
without uploading it
Convertly is a privacy-first file converter that runs entirely in your browser. Convert documents, images, audio, video, data, and archives — no signup, no watermark, no file limits, no upload.
Drop your file here
or click to browse — stays in your browser
Why people choose Convertly
Everything you need from a file converter, nothing you don't. Private, fast, and free.
100% Private
Your files never leave your browser. No uploads, no servers, no tracking. Everything is processed locally using browser APIs.
69+ Conversion Tools
Convert between 70+ formats across documents, images, audio, video, data, and archives — all in one place.
No Signup Required
Skip the account creation. No email, no password, no verification. Just open a tool and start converting instantly.
Instant Conversion
No queue, no waiting for server processing. Your file is converted the moment you drop it, right on your device.
Works Offline
Once loaded, most tools run without an internet connection. Convert files anywhere — on a plane, in a tunnel, anywhere.
No Watermarks
Your converted files are clean and complete. No watermarks, no limits, no upsells. Just the file you asked for.
Convert anything
Six categories. 70+ formats. 69 free tools. All private, all in your browser.
Document Converter
Convert Word, PDF, Excel, PowerPoint, EPUB, HTML and more
View all document toolsImage Converter
Convert HEIC, WebP, SVG, ICO, PNG, AVIF, BMP, TIFF and more
View all image toolsAudio Converter
Convert MP3, WAV, AAC, FLAC, M4A, OGG and compress audio files
View all audio toolsVideo Converter
Convert MOV, MP4, WebM, MKV, AVI, GIF and compress video files
View all video toolsThree steps. That's it.
No accounts, no uploads, no waiting. The simplest way to convert a file.
Choose your tool
Pick from 69 file format converters across documents, images, audio, video, data, and archives. No signup needed.
Drop your file
Drag and drop or browse to select your file. It stays in your browser — nothing gets uploaded to any server.
Download instantly
Your file is converted locally and ready to download immediately. No waiting, no watermarks, no limits.
Your file never leaves your device
Unlike CloudConvert, Convertio, and Zamzar — which upload your files to their servers — Convertly processes everything locally using browser APIs like Canvas, Web Audio, and FFmpeg.wasm.
How we compare to the competition
The biggest difference is where your files go. With Convertly, they stay right where they are.
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| Feature | Convertly Recommended | CloudConvert | Convertio | Zamzar | Smallpdf | iLovePDF |
|---|---|---|---|---|---|---|
| Processing | Client-side (browser) | Server-side (cloud) | Server-side (cloud) | Server-side (cloud) | Server-side (cloud) | Server-side (cloud) |
| Files Leave Browser | No | Yes — uploaded to servers | Yes — uploaded to servers | Yes — uploaded to servers | Yes — uploaded to servers | Yes — uploaded to servers |
| Signup Required | Not required | Required for API | Required for API | Required for API | Not required | Not required |
| Free Limit | Unlimited | 25 conversions/day | 10 conversions/day | 2 conversions/day | 2 tasks/day | Limited tasks |
| Watermark | No | No | No | No | No | No |
| Max File Size | RAM-limited | 100MB (free) | 100MB (free) | 50MB (free) | 5GB (free) | 10MB (free) |
| Paid Plan | 100% Free | $8/mo | $9.99/mo | $25/mo | $12/mo | $7/mo |
Data based on publicly available information as of 2026. Competitor pricing and limits may change.
Questions? We've got answers.
Are my files really private?
Yes, absolutely. Convertly processes most conversions entirely in your browser using client-side technologies like Canvas API, Web Audio API, FFmpeg.wasm, and JavaScript. Your files never get uploaded to any server. For a small number of complex formats that require server-side processing, we clearly label those tools and delete files immediately after conversion.
Do I need to create an account?
No. Convertly requires no signup, no registration, and no email address. Simply visit the tool page, upload your file, and download the converted result. You can use every free tool without any account.
Are there any file size limits?
For client-side tools, there are no artificial file size limits — the only constraint is your device's available memory (RAM). Most browser-based converters can handle files up to several hundred megabytes or more, depending on your hardware.
Is Convertly really free?
Yes. Everything is completely free with unlimited usage — no daily limits, no conversion credits, no watermarks, no subscriptions, no premium tiers. We're supported by ads and optional donations from users who find the tools helpful.
How is Convertly different from CloudConvert or Convertio?
The biggest difference is privacy. CloudConvert, Convertio, Zamzar, Smallpdf, iLovePDF and most other converters upload your files to their servers for processing. Convertly runs conversions directly in your browser — your files never leave your device. Additionally, we offer unlimited free conversions with no daily limits, no watermarks, and no signup required.
What file formats are supported?
Convertly supports 70+ file formats across documents (PDF, Word, Excel, PowerPoint, EPUB, HTML), images (HEIC, WebP, SVG, ICO, PNG, JPG), audio (MP3, WAV, AAC), video (MOV, MP4, WebM, GIF), data (JSON, CSV, XML, YAML, SQL), and archives (ZIP, RAR, 7Z, TAR). With 2,500+ conversion combinations, we cover virtually every format pair.
Does Convertly work on mobile devices?
Yes. Convertly is fully browser-based and works on all devices — desktop, laptop, tablet, and mobile. There's nothing to download or install. Our interface is optimized for screens from 358px to 1920px wide.
Can I use Convertly offline?
Most client-side tools work offline once the page is loaded, since processing happens in your browser. However, you need an internet connection to initially load the tool page and its required libraries.
Still have questions?