Fast, private, upload-free
Conversion finishes inside your browser, so there's no uploading to a server and waiting. Files never leave your device — we can't even see their names.
Three steps is all it takes
Drag in a file, pick the format you want, and get the result right away. No programs to install, no accounts to create, no uploads to wait for. Convert images, video, audio, PDFs, subtitles, and data in one place.
- 01
Drop your file
Drag an image, video, audio, PDF, subtitle, or data file into the converter, or click to choose one from your device.
- 02
Pick the output format
Choose the output format you want for each file, or open a dedicated conversion page (MOV to MP4, WAV to M4A, and more).
- 03
Convert and download
Click convert and your browser handles the rest. Save the result the moment it's done.
Everything you need to convert files
Hardware-accelerated media engine
MOV to MP4 uses the WebCodecs hardware encoder when your browser supports it. Other video and audio conversions run on a WebAssembly media engine inside the browser sandbox.
Instant image conversion
JPEG, PNG, WebP, GIF, and BMP convert with the browser's built-in canvas encoder, and HEIC photos and SVG artwork also become JPEG or PNG right in the browser.
Video ↔ audio extraction
Pick a video, choose an audio format, and get just the audio track. Great for turning talks, lectures, and podcasts into MP3.
MP4 fast-start
MP4 output is generated with the moov atom at the start of the file — ideal for streaming and direct web playback.
Nothing to install
No desktop app, no plugins, no command-line ffmpeg. Open the page, drop a file, get your result.
Batch conversion with ZIP download
Queue multiple files, convert them in order, and download the finished results as a single ZIP.
PDF, subtitle & data conversion
Bundle images into PDFs, extract images and text from PDFs, convert SRT and VTT subtitles, and transform CSV, JSON, YAML, XML, and XLSX — all in your browser.
Frequently asked questions
Which formats can I convert?
Images: JPEG, PNG, WebP, GIF, BMP, HEIC, and SVG conversion, PNG-to-SVG tracing, and APNG ↔ GIF. Video: MOV, MP4, WebM, MKV, and AVI to MP4, WebM, or GIF. Audio: M4A, MP3, WAV, and OGG output. Documents: images and text to PDF, PDF to images, text, Word, or EPUB, and DOCX or EPUB to PDF. Subtitles: SRT ↔ VTT. Data: CSV, JSON, YAML, XML, and XLSX conversion plus ZIP and TAR.GZ archives.
Is there a file size limit?
Images up to 25 MiB per file; video and audio up to 100 MiB per file; documents such as PDFs plus Excel and archive files up to 50 MiB per file; subtitle and data files up to 20 MiB per file. Large files can take longer to convert depending on your device.
Why does the first media conversion take a moment?
Video and audio conversion downloads a media engine (about 32 MB) once. After that it starts instantly from the browser cache. MOV to MP4 starts right away without the engine download when your browser supports WebCodecs.
Which browsers are supported?
Recent versions of Chrome, Edge, Firefox, and Safari, on both desktop and mobile. Conversion speed depends on your device's performance.
Can I convert multiple files at once?
Yes. The queue on the home page holds up to 10 files, converts them in order, and lets you download the finished results as a single ZIP.
Does BaroConvert upload my files to a server?
No. Every conversion runs inside your browser. Files never leave your device, and we can't see their names or contents.