Convert DNG to APNG Online

DNG to APNG — Should You Animate a RAW Sequence as APNG or GIF?

If you shot a burst, a bracket, or a timelapse and want the frames to play as one looping image, the only real decision is APNG or GIF. Short answer: pick APNG when the frames are photographic — skies, skin, gradients, anything with subtle colour — because APNG keeps 24-bit truecolour and lossless compression, while GIF has to crush every frame into a 256-colour palette. Pick GIF only when the destination is an old client that cannot display an animated PNG. This tool takes your .dng files, renders each one to a frame, and assembles them into a single looping APNG.

APNG vs GIF for a DNG Sequence

When APNG Is the Right Target

• The frames are photographic: RAW landscapes, portraits, product turntables, anything with gradients that would band at 256 colours.
• You want the animation to be lossless, so it can be re-encoded later without stacking generation loss.
• The result will be embedded on a modern web page, in a README, or in chat apps that render animated PNG.
• You need smooth alpha edges (relevant if you later composite the animation over a background).

When GIF Still Wins

• The receiving system is old or restrictive and only accepts .gif — some forums, ad slots, and legacy CMS uploaders still are.
• File size matters more than colour accuracy and the content is graphic rather than photographic.
• You want an animation that plays inside email clients, where GIF has decades of support behind it. In that case use DNG to GIF instead, or make the APNG first and run it through APNG to GIF.

How to Convert DNG to APNG

1. Upload Your DNG Files: Drag your .dng files onto the page or click "+ Add Files". The listed order is the frame order, so add them in the sequence you want them to play — camera filenames such as IMG_0001…IMG_0048 already sort correctly.
2. Set the Framerate: Open Advanced Options and pick a value in the Framerate dropdown; it defaults to "10 FPS (Recommended)" and ranges from "1 FPS (Slideshow)" to "50 FPS (Max Speed)". This is the only control over playback speed — there is no per-frame delay editor.
3. Set Image Resolution and Combine Mode: Image resolution starts on "Keep original"; switch to Resolution Percentage, a preset, or Width x Height to bring big RAW frames down to a sane pixel size. Leave "Combine?" on "Single animation" to get one APNG from all your files, or choose "Individual files" to get one APNG per DNG.
4. Convert and Download: Click Convert and download the APNG. Files upload over an encrypted connection, are processed on our servers, and are deleted automatically after a few hours — no sign-up, no watermark.

Framerate, Frame Delay, and Clip Length

The Framerate value sets an exact per-frame delay of 1/FPS, so the length of the animation is simply frame count divided by framerate.

What Happens to Your RAW Frames During Assembly

Each DNG is first re-rendered into a clean PNG frame: the RAW is demosaiced and tone-mapped to ordinary 8-bit sRGB, and oversized frames are brought down to at most 4096 px on the long edge so the assembler can handle them. Our pipeline then hands the frames to apngasm with an exact 1/FPS delay and an infinite loop count, and finishes with a Zopfli optimisation pass to shave bytes without touching pixels. If your files have different dimensions — say you mixed a cropped export into the sequence — each frame is centred on a shared canvas sized to the largest frame, with the surrounding area left transparent rather than stretched. Upload a single DNG and there is no animation to assemble, so what you get back is an ordinary static PNG without the animation chunks — a clean rendered still rather than a one-frame loop.

Frequently Asked Questions

Does APNG keep my DNG's RAW dynamic range?

No, and no pixel format would. A DNG stores 12–16-bit linear sensor data with editing latitude; APNG frames are 8 bits per channel in sRGB, the same ceiling as PNG, JPG, or GIF. The conversion demosaics and tone-maps each RAW into a rendered frame, so what you see is one interpretation of the scene. Grade highlights and shadows in RAW software first, then animate the exports.

What happens if I upload just one DNG file?

You get a single-frame-looking APNG rather than an error. The assembler needs at least two frames to produce a valid animation, so a lone image is repeated — the file plays as a still. If a static image is what you actually want, DNG to PNG is the correct tool and produces a smaller file.

How do I control which frame plays first?

Frame order follows the order the files appear in the upload list before you press Convert, which normally matches the camera's filename sequence. Rename or reorder your DNGs if the burst needs to run in a different direction — there is no reverse or shuffle option in the converter.

Will the APNG show in a browser that doesn't support animated PNG?

It shows the first frame as an ordinary static PNG. That fallback is built into the format: the animation lives in ancillary acTL, fcTL, and fdAT chunks, and a decoder that doesn't recognise them renders the base image and ignores the rest. Support currently covers about 95.9% of tracked global browser traffic.

Why is my APNG so much larger than a GIF of the same sequence?

Because nothing is discarded. APNG stores every frame losslessly at full colour depth, and photographic RAW frames change in almost every pixel between shots, so inter-frame savings are small. Cut the size by lowering Image resolution, trimming the number of frames, or accepting a palette by converting to GIF instead. You can also run the finished file through APNG compression, which exposes file-size targets and an Auto Scale option that the converter does not.

Can I set a different delay for individual frames?

Not here. The Framerate dropdown applies one uniform delay of 1/FPS to every frame, which is what a burst or timelapse wants. Variable per-frame timing requires an APNG editor that writes custom fcTL delays for each frame.

Does the animation loop forever, or play once?

Forever. The assembler writes a loop count of zero, which the PNG specification defines as infinite repetition. There is no play-once option in this converter.

Do my DNG frames need to be the same size?

Ideally, yes — a burst straight from one camera already is. If they differ, each frame is scaled and centred on a common canvas sized to the largest one, and the leftover area is transparent. Mixing portrait and landscape shots in one sequence therefore produces visible empty margins around the narrower frames.

Are my uploaded RAW files kept private?

Your DNGs travel over an encrypted connection, are converted on our servers, and are deleted automatically after a few hours. There is no sign-up, no watermark, and files are never shared or made public. The practical constraint on a long RAW sequence is upload size and time, since DNG files routinely run 20–60 MB each.