I built ReduceGIF — compress, crop, reverse & remove GIF backgrounds in your browser

Why another GIF tool?

Most online GIF compressors upload your file to a server. That works, but it’s slow, privacy‑awkward, and often watermarked.

I wanted a toolkit that keeps the file on your device and still does the useful edits people need every day.

Meet ReduceGIF

ReduceGIF is a free browser‑based GIF toolkit:

• Compress animated GIFs (gifsicle compiled to WebAssembly)
• Resize by scale or max width
• Crop with a drag selection
• Reverse frame order
• Remove backgrounds (color key or on‑device AI cutout)

No account. No watermark. Processing happens locally in the browser.

How it works (high level)

• Static site built with Astro
• GIF optimization via gifsicle‑wasm
• Frame decode/encode with gifuct‑js / gifenc
• Optional AI background removal with @imgly/background‑removal + ONNX Runtime Web
• Hosted on Cloudflare Pages

Try it

👉 https://reducegif.com/

Related pages:

• /resize
• /crop
• /reverse
• /background-remover

Feedback welcome — especially on compression quality vs size, and AI bg‑removal limits.

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Indie project. Free to use.