Sprite Sheet to GIF

Slice an existing PNG sheet into frames, set the timing and loop, then export an animated GIF.

Sprite Sheet to GIF

Drop a PNG sprite sheet here

PNG sheet: 20 MiB per-file ceiling · 16 MiB total with companion JSON

Up to 4096 px per side, 1,048,576 pixels per frame and 4,194,304 combined frame pixels. Sheets: 4,194,304 pixels. Up to 256 frames or grid cells.

Optional ForgeSprite frame JSON, up to 512 KiB. Adding it selects metadata mode; replacing the PNG clears it. Older versions may not read tight, trim, extrusion or omitted-edge metadata.

Set exact frame boundaries, then preview. Incomplete edge cells are rejected by default; choose Omit with warning to discard right/bottom remainders.

GIF uses at most 256 palette entries: one for transparency and up to 255 opaque colors. More colors are quantized. Partial alpha uses the selected threshold (128 by default), not partial transparency. Delays are rounded to 10 ms; viewers may clamp short delays. Check the exported animation.

Common canvas aligns original source anchors by default, without scaling. Nearest-pixel alignment reports rounding up to 0.5 px per axis; exact alignment rejects fractional shifts. Top-left keeps source origins together instead.

Changing settings clears previous downloads. Export again to update them.

Frame preview

Choose PNG frames, a PNG sprite sheet or a GIF to preview here.

Grid overlay

— / —

No frames to preview yet

How to use this tool

Choose a sheet
Select a PNG and optionally its companion JSON. Set a grid or exact frame dimensions when metadata is not available.
Preview the sequence
Preview frames after geometry changes. Choose a range and set source timing, FPS or per-frame durations.
Export and check
Convert to GIF and inspect colors, transparency and playback timing. GIF cannot preserve every PNG color or partial alpha value.

Frame preview

How to use this tool

Choose a sheet

Preview the sequence

Export and check

Questions

Will GIF match the PNG exactly?

Why can timing change?