Recover complete GIF display frames
Export every full-grid GIF display frame as PNG with original delay, disposal, palette, loop and complete provenance.
Choose the canvas before recovering frames
Tim asked for the images of GIF frames. T329 exports every fully composited display frame rather than saving only the small rectangles stored in a GIF. Select the original and choose a background policy before running.
Transparent canvas begins transparent and clears disposal2 patch regions to transparent. GIF background uses the opaque global background color when a global table exists, otherwise transparent. This choice can change pixels outside stored patches.
Keep all frames and complete evidence
Download gif-frames.zip. Controlled numbered paths retain order and distinguish frames with the same delay or pixels. The table paginates all frames; the ZIP contains the full palette, patch offsets, GCE fields and raw comments.
| Artifact | Use | Preservation |
|---|---|---|
| original.gif | Keep the source | Every original byte |
| frames/frame-NNNN.png | Edit a full display frame | Full logical-screen RGBA under the selected policy |
| gif-frames.json | Audit full declarations | All palettes, controls, offsets and hashes |
| gif-frames.csv | Inspect every frame | Complete formula-safe rows |
Read source time and disposal precisely
Transparent patch pixels do not replace existing pixels. Disposal0 and1 retain;2 clears the patch rectangle;3 restores the previous canvas. Disposal0 retain differs from readers that inherit the last nonzero disposal.
Each PNG contains the complete logical screen as RGBA8, without Canvas resizing or color transforms. Alpha0 hidden RGB is canonical zero. Raw delays stay in hundredths, including zero; no player minimum delay, page background or all-viewer RGBA is inferred.
Use a concrete example
One 8505-byte real Pillow dictionary GIF at 61×47. 8 PNG display frames, 22936 summed pixels, 28 raw hundredths, loop declaration2 and 11 ZIP members.
The explicit mixed3→0→1 specimen is checked with independent patch decoding and canvas composition. Its retain policy differs from Pillow whole-animation disposal inheritance; it is not advertised as identical to every viewer.
Apply every limit and recover after refusal
One GIF87a/89a up to 10 MiB; at most 500 frames, logical width/height 2048 and 16777216 summed full-display pixels. Every frame is charged at the full logical size, including a tiny stored patch.
Download original.gif, every frames/frame-NNNN.png, gif-frames.json and formula-safe gif-frames.csv in one ZIP. Combined JSON/CSV allows 4 MiB. The 100 MiB ZIP guard is dominated by stricter source, pixel and report limits, not an independently reachable output promise.
A malformed, unsupported or over-budget input creates no download. Cancellation discards unfinished output. Correct the input or choose a supported original, then rerun; the same selected file can be reused.
- No skipped malformed frames or partial ZIP.
- No upload, image predecode or source metadata execution.
- Keep the original beside later resizing, timing edits or metadata cleaning.
References
- Tim / original GIF frame request
Complete question, answers and both comment types reviewed. Corey separately describes using a web frame splitter. No author GIF, region, market size or playback timing evidence.
- GIF89a specification
Correctness source for color tables, LZW, graphics control, interlace and disposal. Transparent canvas and disposal0 retain are explicit export choices, not universal viewer behavior.
Tools in this category
Expand a tool to see its steps, options and supported formats, then open its workspace.
Extract GIF display framesRecover every composited GIF frame as full-grid PNG, with explicit background policy, raw delay/disposal and complete original/JSON/CSV ZIP.
Select one existing GIF, choose a canvas background and recover every fully composited display frame. Keep original delays and disposal declarations beside the PNGs in a complete ZIP.
Steps
- Select one original GIF and keep a backup.
- Choose transparent canvas or GIF background color.
- Run and inspect every patch, disposal and raw delay row.
- Download the ZIP and open full-grid PNGs; audit all records and hashes in JSON/CSV.
Available options
- Canvas background for export
- Transparent canvas · GIF background color
Capabilities and limits
- One GIF87a/89a up to 10 MiB; at most 500 frames, logical width/height 2048 and 16777216 summed full-display pixels. Every frame is charged at the full logical size, including a tiny stored patch.
- Global/local color tables, ordinary/four-pass interlaced images, complete LZW, disposal0/1/2/3 and one NETSCAPE2.0 loop declaration are supported. Raw comments remain hexadecimal bytes in the full JSON.
- Transparent canvas begins transparent and clears disposal2 patch regions to transparent. GIF background uses the opaque global background color when a global table exists, otherwise transparent. This choice can change pixels outside stored patches.
- Transparent patch pixels do not replace existing pixels. Disposal0 and1 retain;2 clears the patch rectangle;3 restores the previous canvas. Disposal0 retain differs from readers that inherit the last nonzero disposal.
- Each PNG contains the complete logical screen as RGBA8, without Canvas resizing or color transforms. Alpha0 hidden RGB is canonical zero. Raw delays stay in hundredths, including zero; no player minimum delay, page background or all-viewer RGBA is inferred.
- Plain Text, unknown extensions/applications, user-input/reserved flags, disposal4–7, illegal palette indices, malformed LZW, truncation and trailing garbage refuse the whole file. No partial archive is offered.
- Download original.gif, every frames/frame-NNNN.png, gif-frames.json and formula-safe gif-frames.csv in one ZIP. Combined JSON/CSV allows 4 MiB. The 100 MiB ZIP guard is dominated by stricter source, pixel and report limits, not an independently reachable output promise.
- Files are processed locally without upload, URL fetching or user-content execution. Preserve the original: this is image recovery, not metadata cleaning, animation editing or universal GIF validation.