PNG to 3GP Converter

How to Convert PNG to 3GP Online

1. Upload Your PNG Images: Drag and drop or click "Add Files" to select .png images. Drop in a single screenshot for a one-frame video, a handful of photos for a slideshow, or a numbered render sequence (frame_0001.png through frame_NNNN.png) to assemble. Batch is supported — drop in an entire folder.
2. Pick a Video Codec and Quality Preset: Output is wrapped in a 3GP container — the format 3GPP designed for 3G mobile handsets. Default is H.264, which every 3GP-aware phone since 2007 decodes natively. Drop down to H.263 for 2002-2006 feature phones (the original 3GP profile) or MPEG-4 Part 2 for in-between handsets. Quality presets run Lowest → Highest, target an exact file size in KB / MB, set a constant or variable bitrate, or fine-tune with CRF (0-51 for H.264, lower = better; 23-28 is a good fit for small mobile screens).
3. Set Image Duration, Resolution, and Background Color (Optional): Pick how long each PNG displays — from 1/60 second (60 fps animation playback) up to 10 seconds per slide for a calm photo show. Choose a resolution preset sized for old handset screens (256×144, 426×240, 640×360, 854×480) or go up to 720P / 1080P for newer 3GP-compatible devices. Because 3GP video has no alpha channel, transparent PNG areas are flattened to the background color you pick (Black, White, or any of 24 named colors). Use Video Trim to bound the output to a start time and duration.
4. Convert and Download: Click Convert. Files process in your browser session and download as a single .3gp — no sign-up, no watermark, no upload to a third-party server. Side-load to the phone over Bluetooth, USB mass storage, or a microSD card.

Why Convert PNG to 3GP?

PNG is the dominant lossless still-image format — the default for screenshots, UI exports, transparent logos, and rendered animation frames. 3GP is the multimedia container 3GPP standardised for low-bandwidth 3G mobile handsets — Nokia Symbian, Sony Ericsson, BlackBerry, early Samsung and LG feature phones, and the first generation of Android and Windows Mobile devices. Converting PNG → 3GP wraps your stills (or numbered frame sequence) into a .3gp that those legacy handsets and any modern player with a 3GP decoder can read. For modern phones and the open web, convert PNG to MP4 instead — pick 3GP only when the playback target requires it.

• 2003-2010 feature phones with native 3GP playback — Nokia N-series (N70, N73, N95), Sony Ericsson Walkman / Cyber-shot models, Motorola RAZR, and early Samsung / LG sliders shipped with a 3GP-only video player. MMS galleries, ringtones folders, and built-in slideshow widgets read .3gp and reject .mp4 / .avi. A PNG slideshow converted to 3GP plays back from the phone's gallery without firmware tricks.
• MMS multimedia messages — Carrier MMS gateways (Verizon, T-Mobile, Vodafone, O2 in the early-2010s feature-phone era) wrap outgoing video as 3GP and cap payload size around 300 KB to 1 MB. A short PNG → 3GP conversion at QCIF (176×144) or 256×144 hits the cap and survives the gateway re-encode.
• Embedded systems and digital signage from the late-2000s — Some older bus / train / waiting-room signage CPUs and elevator info screens use a 3GP playlist on a CompactFlash card. Updating the rotation with a fresh PNG-built .3gp keeps the existing player firmware happy.
• Demo loops on collectible mobile hardware — Hobbyists restoring a Nokia N95, Sony Ericsson K800i, or original BlackBerry Pearl want a slideshow that runs on the original UI. The .3gp produced here matches the codec profile the device decodes in hardware.
• Rendered animation frames for flip-phone-era playback — Animators producing a low-bandwidth promo or art project for legacy phone hardware export numbered PNG frames and need them assembled at 12-15 fps inside a 3GP. Set 1/12 or 1/15 second per image to land inside the H.263 baseline profile.
• Automotive and aftermarket players that read 3GP — Some 2005-2012 in-dash receivers and portable DVD players (alongside DivX) include a 3GP decoder for ringtone-era video clips. A PNG slideshow at 320×240 plays from a USB stick on the dashboard screen.

PNG vs 3GP — Format Comparison

Codec and Resolution Quick Guide

Frequently Asked Questions

Why pick 3GP instead of MP4 in 2026?

Mobile handsets shipped between roughly 2002 and 2012 — Nokia Symbian, Sony Ericsson, early BlackBerry, original Motorola RAZR, first-generation Android and Windows Mobile — often only decode 3GP and reject .mp4 files in their gallery, MMS, and ringtone-video apps. If the playback target is an actual 3G-era phone, an MMS message that has to traverse a carrier gateway, or restored collectible hardware, 3GP is the only container the device understands. For phones, tablets, and modern TVs from 2013 onward, convert PNG to MP4 instead — it is the modern, near-universal default.

What is the difference between 3GP and 3G2?

3GP (.3gp) was standardised by 3GPP for GSM-network handsets (Nokia, Sony Ericsson, Samsung, LG in Europe, Asia, and most of the world). 3G2 (.3g2) is the parallel 3GPP2 specification for CDMA-network handsets (Verizon, Sprint, US Cellular, KDDI in Japan). The codecs overlap (H.263, H.264, AMR), but the container metadata and supported audio codecs differ. If the target handset is on a CDMA carrier, convert PNG to 3G2 instead. For everything else, 3GP is the safe pick.

What happens to PNG transparency in the 3GP output?

3GP video has no alpha channel, so transparent PNG areas are flattened to the background color you choose in step 3. Default is Black (matches old phone screens with their dark-on-dark UI). Pick White for a clean look on later AMOLED screens, or one of the 24 named colors to match a brand or stage backdrop. Pre-flatten in PNG to JPG first if you want full control over how the alpha is composited before encoding.

How long will my 3GP be if I upload N images?

Output duration = number of images × image duration. 30 photos at 4 seconds each = 120 seconds (2 minutes). 600 timelapse frames at 1/15 second = 40 seconds. The setting is per-image and applied uniformly to every PNG you upload. Drag the file rows to reorder before clicking Convert.

What resolution should I pick for an MMS message?

Stay at 176×144 (QCIF) or 256×144 with H.263 video and a low bitrate (64-128 kbps) — this is what carrier MMS gateways are built around, and it keeps the resulting .3gp under the typical 300 KB to 1 MB MMS size cap. Going above QCIF risks the gateway re-encoding (which can corrupt the file) or rejecting the attachment entirely. For an actual phone gallery (not MMS), 320×240 or 426×240 with H.264 baseline is a better balance of quality and size.

Will my 3GP play on a modern phone or smart TV?

Yes — VLC, MX Player, MPV, Windows 10/11, macOS, iOS, and Android all decode 3GP natively. Most smart TVs from 2014 onward also handle it via USB. The point of converting to 3GP is for the handful of older targets that only play 3GP. If the playback chain is entirely modern, convert PNG to MP4 gives a slightly smaller, slightly higher-quality file at the same settings.

Does 3GP support audio in this converter?

The PNG-to-3GP path produces a silent .3gp — there is no audio source on the input side to encode. To score a slideshow, convert here first, then layer in music with merge it with a video editor (DaVinci Resolve, Shotcut, CapCut, Adobe Premiere). The 3GP container natively supports AMR-NB (the narrow-band speech codec on every 3G handset) and AAC for downstream tools.

What happens if my PNGs are different resolutions or aspect ratios?

Each frame is scaled to fit inside the chosen output resolution while preserving the source aspect ratio. Empty space is filled with the background color (letterbox for tall sources in a wide frame, pillarbox for wide sources in a tall frame). For consistent results, resize PNG all images to the same dimensions first.

Can I trim or pick a subset of frames?

Yes — Video Trim sets a start time and duration on the output, and the Image Drop Frames option takes every 2nd / 3rd / 4th frame from a long PNG sequence to shorten a timelapse without re-rendering. To go the other direction (extract stills from a finished 3GP), see 3GP to PNG.