How to convert a .WP3 file online
Three steps, all tab.
Open your file
Drop your .WP3 file and every video, audio and subtitle track inside is listed with its codec, resolution, frame rate and language.
Preview
See frames from across your .WP3 file before you convert, even when your browser can't play the codec inside.
Convert
Pick MP4, WEBM or MP3, or repack to MKV without re-encoding. Play the result right here, then download it.
What is a .WP3 file?
Everything worth knowing about Microsoft Photo Story 3 Project File.
A WP3 file is a Microsoft Photo Story 3 project, a CAB archive holding photos, audio, and slideshow settings. Open it in Photo Story 3 (free, discontinued) to render it to WMV. On Windows 10/11, Photo Story 3 often fails to run; rename the file to .cab and open with 7-Zip to extract the photos, or use the online converter at convert.guru.
Programs that open .WP3 files
- Windows
- 7-Zip (for content extraction only), Photo Story 3
- Web
- convert.guru WP3 Converter
| Full name | Microsoft Photo Story 3 Project File |
|---|---|
| Developer | Microsoft Corporation |
| First released | 2004 (Photo Story 3 released October 2004) |
| Category | Audio & Video |
| MIME type | application/octet-stream |
| Signature | 4D 53 43 46 (MSCF - Microsoft Cabinet (CAB) file signature) |
Related viewers
Other free tools to open and preview your files.
Is my .WP3 file uploaded to a server?
No. Your .WP3 file is converted for you. The converted file is created in memory,.
Why is conversion slower than desktop software?
Browsers give web pages a single CPU core for this kind of work and no hardware video encoder. Short clips convert in seconds; for long 4K films a desktop app like HandBrake is faster. Use Start and Length to convert just the part you need.
Which output format should I pick?
MP4 plays on every phone, TV and browser. WEBM is an open format that's great for the web. MP3 keeps only the sound. MKV (no re-encode) is instant and lossless, but only changes the container.
Can I keep all audio tracks and subtitles?
The MKV (no re-encode) option copies every track as-is. MP4 and WEBM keep the first video and audio track, which is what most players use.
Why can't some files be converted?
Files protected with DRM (for example purchased iTunes .m4p songs or some .wmv rentals) are encrypted. We can show what's inside, but nobody can convert them without the key.
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