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GIF Studio

Processing and format details+
Core processing
100% browser-local
Tool data upload
No application-server upload
Browser technology
Web Worker + gifuct-js + gifenc + OffscreenCanvas
Formats / output
GIF → GIF and transformed first-frame PNG

LOCAL GIF WORKBENCH

Edit animated GIFs frame by frame

Start from a practical preset, inspect the original animation, then refine its size, crop, playback and color count before re-encoding every frame locally.

Quick starting point

Original size · 1× playback · 256 colors · forward

OPTIONAL CONTROLS

Advanced GIF settings

Use these controls only when the preset needs a precise crop, target size, playback speed, rotation or color limit.

Crop area (%)
Rotation
0°

To keep the browser responsive, GIF Studio supports up to 120 frames, 16 MP per frame and 120 MP across all frames. GIF is re-encoded with up to 256 colors per frame.

Choose a GIF to inspect its frames.

ORIGINAL

Original animation preview

RESULT

Generate an optimized GIF to compare

About this tool+

Inspect a GIF's dimensions, frame count and duration, start from Keep detail, Web balance or Share small, then resize, view the crop area, rotate by 90 degrees, reverse frames, change speed, choose 64/128/256 colors, or export the transformed first frame as PNG. All processing happens in a browser worker.

BEST FOR

Anyone preparing animated GIFs for web pages, social posts, slides, sharing, or a static cover image.

  • Read the full GIF frame sequence, dimensions and duration
  • Start with Keep detail, Web balance or Share small
  • Resize, view the crop area and rotate every frame
  • Use 0.5×, 1×, 1.5× or 2× speed, optional reverse playback, and 64/128/256 colors
How to use+
  1. 1

    Choose a GIF and inspect its frame information

  2. 2

    Pick a starting preset and refine size, crop, rotation, speed, colors or reverse playback

  3. 3

    Generate the new GIF in a browser worker

  4. 4

    Compare it, download the GIF, or export a cover PNG

Tips and examples+

PRACTICAL EXAMPLE

Decide whether you need animation or a cover before frame processing

GIF re-encoding limits each animation frame to the selected 64, 128 or 256 color range, so file size and color detail need a deliberate trade-off. Start with Keep Detail, Web Balanced or Share Smaller to get an appropriate baseline, then inspect the visible crop area and tune dimensions, speed or colors. If the final asset is only a page cover or static share image, a transformed first-frame PNG is often a better fit than another GIF.

Example: crop an animation for social media and slow it down

Choose the GIF and inspect its frame count, dimensions and duration. Begin with Web Balanced, then adjust the visible crop area and maximum dimensions for the platform, rotating by 90 degrees if needed. Choose 0.5× or 1.5× speed, generate a GIF, and inspect the full playback. Switch to Share Smaller if the result still exceeds the size limit; if you only need a cover, export the first-frame PNG instead.

Before you generate

  • GIF Studio supports up to 120 frames, 16 megapixels per frame and 120 megapixels across all frames
  • Re-encoding quantizes colors, so fully preview gradients, photos and translucent edges
  • Reverse playback changes frame order; check the loop seam and pacing after generation

Frequently asked questions about GIF Studio

Frequently asked questions+

Is my GIF uploaded?

No. GIF parsing, frame composition, transformation, re-encoding and download stay in the current browser worker.

Does the animation remain animated?

Yes. Generate GIF re-encodes all supported animation frames. The static image tools intentionally read only the first GIF frame.

Why are there frame and pixel limits?

Frame-by-frame GIF work uses significant browser memory. GIF Studio currently supports up to 120 frames, 16 megapixels per frame and 120 megapixels across all frames.

How does GlobalCoreHub handle data in GIF Studio?

GlobalCoreHub runs the core GIF Studio workflow in the current browser. Tool input is not uploaded to the GlobalCoreHub application server; any local saving described on this page stays in the current browser until its site data is cleared.

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