Add your 3GP file
Drop one or more .3gp files onto the converter above, or browse for them. They load into browser memory only — nothing is uploaded, so there is no size-based pricing and no server queue.
Grabbing a .png still from a .3gp video is the quickest way to get a thumbnail, preview, or poster frame without opening an editor. Free, private, and validated — the file never leaves your browser.
Batch files can each use a different output. Nothing uploads for local conversions.
Working inputs include camera RAW, browser-local audio/video, PDF, CBZ/CBR comics, office documents, ebooks, markup, 3D models, structured text, images, and archives.Grabbing a .png still from a .3gp video is the quickest way to get a thumbnail, preview, or poster frame without opening an editor. A .3gp file is a lightweight container defined by the 3GPP standards body for video recorded and shared on mobile phones. It packs low-bitrate video and compressed speech with minimal overhead, which made .3gp the format of MMS messages and early camera phones.
A .png file is a losslessly compressed raster image with full 8-bit alpha transparency, making it the standard choice for graphics that must stay pixel-perfect. Screenshots, logos, UI assets, and diagrams are the classic .png territory, since sharp edges and flat color survive without compression artifacts. For this route the practical draw is perfectly lossless, so files can be opened and re-saved indefinitely and true 8-bit (or 16-bit) alpha channel — balanced against photographic content produces files several times larger than JPEG or WebP, which is worth knowing before you commit a large batch.
A still frame answers a different need than the video itself: thumbnails, link previews, cover art, and quick visual checks. Instead of screenshotting your player (which captures UI and compression artifacts at display size), this route decodes the actual .3gp stream and hands you a clean .png at the video's native resolution — useful because perfectly lossless, so files can be opened and re-saved indefinitely.
| Aspect | 3GPP video (.3gp) | PNG image (.png) |
|---|---|---|
| Format type | Container — quality depends on the codecs and settings inside | Lossless — every pixel or sample is preserved exactly |
| How it stores data | iSO base media structure like MP4, but with a deliberately restricted codec list | uses DEFLATE compression preceded by per-scanline prediction filters (None, Sub, Up, Average, Paeth) |
| Strongest at | recovering videos from old feature phones and their memory cards | screenshots and screen recordings exported as stills |
| Weak spot | picture quality is poor by any modern standard | photographic content produces files several times larger than JPEG or WebP |
| Metadata | a small set of 3GPP-defined asset atoms for title, author, and location exists, though most recording phones never wrote them | text metadata lives in tEXt/iTXt chunks and XMP can be embedded there; standardized EXIF arrived late via the 2017 eXIf chunk, so many tools still drop EXIF when writing PNG |
Drop one or more .3gp files onto the converter above, or browse for them. They load into browser memory only — nothing is uploaded, so there is no size-based pricing and no server queue.
Select .png in the output menu next to each file. The menu only offers targets this engine can genuinely produce, so if PNG is selectable, the route is real and validated.
Press Convert. A WebAssembly FFmpeg build decodes the opening video frame and encodes it as a still image without any upload.
Each result is signature-checked before the download unlocks, so a failed encode can never masquerade as a valid PNG file. Outputs keep the original filename with the .png extension.
You are extracting a single decoded frame from the 3gp stream, so the result is as sharp as the video itself at that instant. Choosing .png keeps it pixel-exact; .jpg and .webp apply mild, adjustable compression suited to sharing.
Yes — the .3gp file is processed inside your browser tab and never uploaded. A WebAssembly FFmpeg build decodes the opening video frame and encodes it as a still image without any upload. Close the tab and the file is gone from memory.
Every modern browser has rendered PNG with full alpha since Internet Explorer 7 fixed its transparency bug in 2006, and native OS support is universal on Windows, macOS, Linux, iOS, and Android. It is also the required format in many contexts, such as iOS app icons and favicon fallbacks.
A single .png frame is a tiny fraction of any video: expect kilobytes to a few megabytes depending on resolution, versus the megabytes-per-minute of the .3gp source.
This converter strips container metadata deliberately (the FFmpeg command runs with metadata mapping disabled) so exported files do not leak recording details. In the source, a small set of 3GPP-defined asset atoms for title, author, and location exists, though most recording phones never wrote them; none of it is transmitted anywhere because the file never leaves your browser.