Convert files in your browser
Pick the pair you need. Every conversion runs in this tab, so a two hour recording is not stopped by an upload limit and a private file stays private.
Pick the pair you need.
Each card is a live converter. Same privacy model as the rest of the site: the file is processed in this tab and never sent anywhere.
WebP to PNG
Saved an image off the web and found nothing will open it? Drop it here. The PNG comes back with its transparency intact, and the file never leaves this tab.
Open WebP to PNGWebP to JPG
The format everything opens, from the format some things refuse. Set the quality yourself, and know that a transparent background will come out white.
Open WebP to JPGHEIC to PNG
The photo your iPhone wrote, in a format everything opens. PNG is lossless, so nothing is thrown away on the way, and the file never leaves this tab.
Open HEIC to PNGHEIC to WebP
The iPhone photo, in the format the web actually wants. Slightly smaller than the JPEG you would otherwise upload, and readable by every current browser, which HEIC is not.
Open HEIC to WebPAVIF to JPG
AVIF is the newest image format on the web, which is why so little outside a browser will open one. This gives you the format everything opens.
Open AVIF to JPGAVIF to PNG
Lossless, and it keeps the alpha channel an AVIF can carry and a JPG cannot. Decoded and rewritten in this tab, with nothing sent anywhere.
Open AVIF to PNGPNG to JPG
The conversion people reach for when something rejected their file for being too big. A photograph usually lands 80 to 95% smaller. Nothing leaves this tab.
Open PNG to JPGJPG to PNG
Lossless from here on, which is not the same as better: whatever the JPG already lost is baked in. Expect a much larger file, and nothing sent anywhere.
Open JPG to PNGPNG to WebP
Smaller than the PNG, with the transparency intact, in a format every current browser reads. The one conversion here that is simply an improvement.
Open PNG to WebPJPG to WebP
The same photograph, in the format every current browser prefers and every performance audit asks for. Converted on this device, with nothing sent anywhere.
Open JPG to WebPSVG to PNG
An SVG has no size of its own, so you pick one. Render it at 4096 wide for a print asset or 32 for a favicon, with the transparency kept and nothing uploaded.
Open SVG to PNGM4A to MP3
For the software that will not open an M4A. Worth knowing before you start: AAC is the better codec, so this is a compatibility win rather than a quality one.
Open M4A to MP3WAV to MP3
A WAV stores every sample in full, which is why it is enormous. This is the first lossy pass the audio has had, so 192 kbps really is transparent rather than merely tolerable.
Open WAV to MP3MP3 to WAV
Lossless from here on, which is not the same as better: whatever the MP3 already discarded is gone for good. Expect a file roughly ten times the size.
Open MP3 to WAVM4A to WAV
For the transcription tool or editor that only takes PCM. If it is speech, drop to 16 kHz mono: a fifth of the size and no worse a transcript.
Open M4A to WAVOGG to MP3
For Windows, car stereos and editors that will not open an OGG. Both Vorbis and Opus files work here, and both are better codecs than what they are becoming.
Open OGG to MP3FLAC to MP3
For the phone, the car or the player that will not take lossless. Your FLAC is untouched, so this is a first lossy pass and 256 is genuinely transparent.
Open FLAC to MP3How to convert a file
Pick the pair
A file can go more than one way. An M4A becomes an MP3 to play anywhere, or a WAV to edit and transcribe, and only you know which you came for.
Set the controls
Quality on images, bitrate or sample rate on audio, or a target size on either. Each page explains what its setting actually costs.
Save the result
The download is the format the page names, in the extension the rest of your software expects. Nothing left your machine to get there.
The home page routes any file we can compress, and the Formats menu lists all of them.
Converting versus compressing
They are different jobs and it is worth being clear which one you want. Compressing keeps the format and makes the file smaller: a JPG in, a smaller JPG out. Converting changes the format, and the size may go up, down or nowhere in particular. A JPG becoming a PNG gets several times bigger; an MP3 becoming a WAV gets about ten times bigger. That is not a fault, it is what the destination format is.
Most conversions here are about compatibility rather than size. Something in your chain will not open the file you have: a car stereo that refuses OGG, a transcription tool that only takes PCM, a print shop that wants JPG, an upload form that has never heard of AVIF or HEIC. The right conversion is the one that makes the file work, and the page for it should tell you what that costs.
The direction matters more than people expect. Converting to a lossy format from a lossless one is a single clean pass and the results are good. Converting between two lossy formats means the second encoder is working from audio or pixels the first one already picked over, and the two rounds of damage compound. Every page on this site says which of those two it is doing, and sets its defaults accordingly.
Questions
Are my files uploaded to convert them?
No. There is no upload endpoint in this site for a file to go to. Every conversion decodes and re-encodes in your own browser, which you can check in your network tools: convert something and watch that no request carries it. Disconnect from the network after the page loads and it still works.
What can I convert here?
Images between WebP, PNG, JPG, AVIF, HEIC and SVG, and audio between M4A, MP3, WAV, OGG and FLAC. Every live pair has its own page, listed above. Video is out of scope on purpose and belongs on vidshift.io.
Is there a file size or length limit?
No. Because the work happens on your own machine there is no server rule to hit, no queue and no per-file charge. A two hour recording or a folder of two hundred photos is limited by your laptop rather than by anyone else.
Will converting make my file smaller?
Sometimes, and it is not what conversion is for. WAV to MP3 is about 90% smaller; MP3 to WAV is about ten times larger; JPG to PNG grows severalfold. If size is the goal, compress instead: the format stays the same and the whole point is fewer bytes.
Does the quality drop when I convert?
It depends which direction. From a lossless source, such as WAV or FLAC to MP3, the encoder works from the original and one careful pass is genuinely transparent. Between two lossy formats, such as M4A to MP3, the damage compounds, which is why those pages default to a higher bitrate than the file they are reading.
Do the tags and metadata survive?
On audio, yes by default: the artist, album and title cross into the new file unless you turn on the strip switch. On images, no: the picture is decoded to pixels and re-encoded, so nothing it arrived with, including EXIF and GPS, can reach the output. Each page states which of those it does.
Is this file converter free?
Yes. The work runs on your own CPU, so there is no per-file cost to pass on, no account, no watermark and no daily limit.