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Supports: 3GPP
This is a frame-grab tool, not a video converter: a .3gpp file is low-resolution mobile video, HEIF is a still-image format, so what you get back is one frame (or a series of separate stills), never an animation. The real decision is which still format to grab into. Choose HEIF if the picture is staying inside the Apple ecosystem, where it opens natively and costs about half the bytes of a JPEG. Choose 3GPP to JPG or 3GPP to PNG if the frame has to open in a browser, an email, or on a machine you do not control — because as of late 2025, Safari is still the only major browser that renders HEIC natively.
| Property | HEIF (.heif / .heic) |
JPG | PNG | AVIF |
|---|---|---|---|---|
| Standard | ISO/IEC 23008-12 (MPEG-H Part 12), 2015 | ITU-T T.81 / ISO/IEC 10918-1, 1992 | ISO/IEC 15948 / W3C PNG | AV1 image in a HEIF-family container |
| Built on | ISO base media file format (ISO/IEC 14496-12) | Its own stream format | Its own chunked format | ISO base media file format |
| Image codec inside | Usually HEVC (that pairing is what "HEIC" means); AV1, AVC, VVC and JPEG are also permitted | JPEG DCT | DEFLATE, lossless | AV1 |
| Colour depth | Up to 10-bit and 12-bit, SDR and HDR | 8-bit per channel | 8 or 16-bit per channel | Up to 12-bit, HDR |
| Transparency | Yes, via an auxiliary alpha image item | No | Full 8-bit alpha | Yes |
| Multiple images in one file | Yes — bursts, sequences, depth maps, thumbnails | No | No (APNG aside) | Yes |
| Native browser support | Safari only among major browsers | Universal | Universal | Chrome, Edge, Firefox, Opera, Safari |
| Opens on a stock Windows PC | Needs Store extensions installed | Yes | Yes | Yes in a browser |
| Size vs an equal-quality JPEG | Roughly half | Baseline | Much larger for photos | Roughly half or better |
.3gpp clip onto the box or click "Add Files". Several clips can be queued and they all run with the same frame settings.| Mode | What you set | What you get | Use it for |
|---|---|---|---|
| Specific Frame | Time (seconds) — 0 for the opening frame, decimals allowed, so 2.5 is valid |
A single HEIF from that exact moment | A poster image, a thumbnail, capturing a readable moment of on-screen text |
| Multiple Screenshots | A capture interval, such as one frame per second | One separate HEIF per captured moment | Contact sheets, picking the best shot out of a recording, sampling a long clip |
One caveat that catches people on both modes: many phone clips open on a fade-in or a black leader frame, so a Time value of 0 can return an empty-looking picture. Set it a second or two in and you will land on real content.
A single still image, not a video and not an animation. .3gpp is a 3GPP multimedia container built on the same ISO base media file format as MP4 and used on GSM-era 3G handsets; HEIF is a still-image container defined in ISO/IEC 23008-12, usually holding one HEVC-coded picture. The converter decodes the frame you select and writes it out as a HEIF. The clip's audio track — normally AMR-NB speech — is discarded, because HEIF has nowhere to put it.
HEIF is the container standard; HEIC is the specific combination of that container with HEVC-coded image data, which is the pairing Apple ships and the reason .heic is the extension you see on an iPhone. The specification is deliberately codec-agnostic — it also permits AV1, AVC, VVC, EVC, and even JPEG payloads inside the same structure — so "HEIF" describes the wrapper and "HEIC" describes the most common thing inside it. AVIF is that same family with AV1 in the payload slot.
Not reliably out of the box. Windows 10 and 11 need HEIF Image Extensions from the Microsoft Store before Photos and File Explorer will render the file, and because most HEIF photos carry HEVC-coded image data, an HEVC decoder is required as well — Microsoft ships that as a separate Store listing, and many PC makers preinstall their own version. Android 10 and later can decode HEIF at the OS level, but gallery apps vary in whether they show it. If the recipient is on either platform and you cannot verify their setup, 3GPP to JPG removes the problem entirely.
Only if your visitors are all on Safari. Among major browsers, Safari is the only one that decodes HEIC natively — Chrome, Edge, Firefox, and Opera do not, and there is no graceful fallback: the image simply fails to display. If you want modern compression on the web, use AVIF instead. It sits in the same ISO base media family and delivers similar efficiency, and every major browser decodes it, which is why 3GPP to AVIF is the right target for anything public-facing.
Because the softness is in the source, not in the encoding. 3GPP clips were commonly captured at 176×144 (QCIF) or 320×240 (QVGA) with H.263 or MPEG-4 Part 2 at low bitrates so they could cross a 3G network, and that blocking is baked into the decoded frame before HEIF ever sees it. Quality Preset governs how faithfully the still is re-encoded, not how much detail exists to encode. Keep it on Very High and leave Image resolution on "Keep original" — upscaling only magnifies the artifacts.
Do not count on it. HEIF is capable of carrying Exif and other metadata, but a .3gpp stores its capture information in MPEG-4 style boxes that do not map cleanly onto an image file's fields, and the conversion is a decode-and-re-encode of one video frame rather than a metadata migration. If the recording date or location matters, read it off the original file's properties and keep the .3gpp alongside the still.
.3gpp the same thing as .3gp?Yes — two spellings of one container, defined in 3GPP TS 26.244 for GSM-based handsets, with identical structure and an identical codec list. This page accepts .3gpp; for the shorter extension, use 3GP to HEIF and follow the same steps. The .3g2 extension is not a spelling variant: it is 3GPP2, the CDMA2000 format, which differs in its voice codec set.
Convert them to something universal rather than chasing decoders. HEIF to JPG takes the file you cannot open and produces a JPEG that will display on anything, which is usually faster than installing Store extensions on a machine you only need to read one picture on. Our converter decodes the HEIF server-side, so nothing has to be installed on your end at all — files upload over an encrypted connection, are processed on our servers, and are deleted automatically after a few hours, with no sign-up and no watermark.