One photo, three file sizes
This 1200 × 800 photo is encoded in your browser right now. Same pixels, very different sizes.
JPG
PNG
WEBP
Convert files without uploading them.
Images, PDFs, audio, video and spreadsheets, converted right in your browser. Free, fast and private.
or drop files here
JPG, PNG, HEIC, PDF, MP4, MP3, XLSX and more
Converted on your device. Nothing is uploaded.
Popular conversions
PNG to JPGSmaller files for photos and emailJPG to PNGLossless copies for editingHEIC to JPGOpen iPhone photos anywhereWEBP to JPGWeb images that open in any appJPG to PDFPhotos and scans in one PDFPDF to JPGEvery page as an imageMP4 to MP3Keep the sound, drop the videoWAV to MP3Shrink large recordingsMOV to MP4iPhone videos for any playerMP4 to GIFTurn a short clip into a GIFXLSX to CSVPlain data for any toolPNG to ICOFavicons in every size
Your files never leave your device.
Most online converters upload your file to a server and send the result back. next-convert does the work inside your browser, so there is nothing to upload and nothing to delete afterwards.
Typical online converter
- Your file
- Uploaded
- Stored on a server
- Downloaded again
next-convert
- Your file
- Converted in your browser
- Saved to your device
Made for everyday files
Quick conversions without accounts, upload limits or waiting in a queue.
No fixed size limit
Files are limited only by your device's memory, not by a plan or a daily quota.
Batches and ZIPs
Add a whole folder of photos and download the results as one ZIP file.
No sign-up, no watermark
Open the page and convert. Results come back clean, with nothing added.
Phone or computer
Works in current browsers on iPhone, Android, Windows, Mac and Linux.
29 formats, 135 conversions
Pick a category to see what goes in and what comes out.
Convert from
- JPG
- PNG
- WEBP
- GIF
- BMP
- ICO
- SVG
- AVIF
- HEIC
- TIFF
Convert to
- JPG
- PNG
- WEBP
- GIF
- BMP
- ICO
- TIFF
Convert from
- JPG
- PNG
- HEIC
Convert to
- JPG
- PNG
- WEBP
- TXT
Convert from
- MP3
- WAV
- M4A
- AAC
- OGG
- OPUS
- FLAC
- WEBA
Convert to
- MP3
- WAV
Convert from
- MP4
- MOV
- WEBM
- MKV
Convert to
- GIF
- MP3
- WAV
- MP4
- MOV
- WEBM
- MKV
Convert from
- XLSX
- XLS
- ODS
- CSV
- JSON
Convert to
- XLSX
- XLS
- ODS
- CSV
- JSON
Is next-convert free?
Yes. You can convert as many files as you like, without an account, a trial or a watermark on the result.
Are my files uploaded anywhere?
No. Your browser does the conversion on your own device, using code that loads with the page. Your files are not sent to next-convert or to anyone else.
Is there a file size limit?
There is no fixed limit. Very large files, such as long videos, are limited by the memory of your device. Closing other tabs gives the converter more room.
Which formats can I convert?
Images, PDF, audio, video and spreadsheets: from JPG, PNG and HEIC to MP4, MP3 and XLSX. The formats page lists every conversion.
Does it work on my phone?
Yes. next-convert works in current browsers on iPhone, iPad, Android, Windows, Mac and Linux. Long videos convert faster on a computer.
Can I convert several files at once?
Yes. Add as many files as you like, choose a format for each one and download them one by one or together as a ZIP.
Have a file to convert?
Drop it anywhere on this page, or pick it from your device.