GIF Frame Editor
Extract, delete, or duplicate individual frames in an animated GIF.
About GIF Frame Editor
Extract, delete, or duplicate individual frames in an animated GIF.
Frame edits happen on the composited RGBA frames in your browser. After your changes, the GIF is re-encoded with gifenc using a fresh per-frame palette so colours stay accurate.
Related tools
About GIF Frame Editor
GIF Frame Editor is shaped around how people actually use image editing and conversion utilities online: open the page, drop in a file, get the result. Extract, delete, or duplicate individual frames in an animated GIF. The interface stays out of the way once the work begins so the engine can use the available CPU and memory for the actual transformation.
The processing pipeline is straightforward: your input is parsed by standard browser APIs, transformed according to the options you select, and serialised back into a downloadable result. Accepted input formats are GIF. The 50 MB per-file ceiling matches what a typical browser tab can handle without paging to disk.
Reach for GIF Frame Editor when you need a predictable result on a single file. The page works on the first visit, the controls are visible without a menu, and the output is delivered the moment the engine finishes.
GIF Frame Editor is structured so the question "where is my file processed?" has a single answer: in your browser tab. The engine, the controls, and the result panel are all on one page. Navigating away or closing the tab clears the page's memory the way it does for every other tab.
The 50 MB ceiling on input size is the only fixed limit. Output files are produced in standard formats that every common viewer recognises, and the tool runs the same way regardless of how many times you have used it during the session.
GIF Frame Editor is intentionally narrow in what it does, which makes it easy to slot into a longer workflow. Take its output, hand it to whichever next tool fits the job, and GIF Frame Editor stays out of your way until the next time you need it.
GIF Frame Editor is shaped around the recurring needs of two audiences: social-media managers sizing posts, who use it as a quick utility between bigger tools, and bloggers preparing hero images, who use it as their primary way of getting the job done. Both groups get the same defaults and the same speed.
Output handling is intentionally boring: GIF Frame Editor produces `{name}-edited.gif` and triggers your browser's standard "save" behaviour. If you have a default download folder configured, that is where it will land. There is no Favtoo-side history of jobs you have run.
Some notes on the design of GIF Frame Editor. The page is intentionally narrow: one input, the controls relevant to the task, and one output. Adding unrelated features would make the common case slower for the majority of users, so the surface is held to what people actually use.
From a product perspective, GIF Frame Editor is one of the simplest possible expressions of "do one thing well." The catalog contains dozens of related tools that each handle a slightly different image editing and conversion task, and every one is a separate page rather than a tab inside a larger app. That separation keeps each tool fast to load and easy to bookmark.
A few practical tips that experienced users of GIF Frame Editor pick up over time. First, keep your default browser updated — the engine relies on standard web APIs and newer browser versions are noticeably faster than ones from a few years ago. Second, close other heavy tabs before processing a large input; the engine shares CPU and memory with whatever else is open. Third, if you re-run the same kind of job often, your last-used settings are remembered for the rest of the tab session, so subsequent runs are essentially one click.
GIF Frame Editor runs as a regular web page, so there is no install step or permission grant before the first run. The page can be audited by viewing the source or by watching the developer-tools Network tab while a job runs.
Common gotchas worth flagging: GIF Frame Editor only accepts GIF, so if your file is in another format you will need to convert it first. The 50 MB ceiling is per-file, not per-session; you can run as many separate jobs as you like, but a single oversized input will be rejected on load.
That is the whole tool. Use GIF Frame Editor for as long as it stays useful to you, and if it does, the catalog has many more tools built the same way. Each applies the same single-purpose discipline, so the way you used this page transfers to the next one you try.
How it works
- 1Land on the GIF Frame Editor page. The tool is ready to use the moment the page renders.
- 2Drop a GIF file onto the upload area, or click to pick one from your device.
- 3Tweak the controls if the defaults are not quite right for your input. The options are kept short and labelled in plain language.
- 4Trigger processing. standard browser APIs reads your input, applies the transformation, and writes the result back into the page.
- 5Save the output (`{name}-edited.gif`) when it is ready.
- 6Repeat the process for additional inputs whenever you need to. The page stays loaded, so subsequent runs are quick.
Common use cases
- Resize a hero image for a landing page without losing crispness using GIF Frame Editor.
- Sharpen a slightly soft photo before sending it to print.
- Generate a square thumbnail from a wide marketing photo.
- Prepare a transparent logo for use over different backgrounds.
- Produce a printable poster from a single source image.
- Compose a mockup banner without bouncing between three different apps.
- Convert a phone screenshot into a CMS-friendly format.
- Convert a batch of camera files into web-friendly formats.
- Crop an image down to the section you actually want to share.
- Optimise a product photo so it loads quickly on a slow connection.
FAQ
What can I do with frames?
Extract a single frame as a PNG, delete a frame to remove it from the animation, or duplicate a frame to make it appear longer.
How are frames numbered?
Frames use 0-based indexing. The first frame is 0, second is 1, and so on.
Can I rearrange frames?
Not directly — extract frames, then use the Slideshow to GIF tool to reassemble in your preferred order.
What format for extracted frames?
Individual frames are extracted as PNG images with full color and transparency support.
Does deleting frames reduce file size?
Yes — each removed frame reduces the file. This is an effective way to optimize GIF size.
Private?
Yes — frame editing runs locally.
Why is in-browser GIF processing slower than online editors?
Server-side editors run on dedicated CPUs with native code paths and parallel workers. Our GIF engine decodes every frame with gifuct-js and re-encodes with gifenc — both pure JavaScript libraries running single-threaded inside your browser tab, which is typically 2–5× slower than a backend pipeline. The trade-off is total privacy: your GIF is never uploaded, never logged, never stored on any third-party server. Closing the tab erases everything from memory immediately. For most short loops the wait is small, and for sensitive material — work captures, dashboards, private screen recordings — the privacy gain is well worth the few extra seconds.
Is my GIF uploaded to a server?
No. Everything runs entirely inside your browser tab using gifuct-js for decoding, the HTML5 Canvas API for pixel work, and gifenc for re-encoding. The file is decoded into local memory only, processed in the same tab, and the result is offered as a direct download. Nothing is transmitted to any server, no account is required, no analytics are tied to your file, and closing the tab discards every byte from memory.
How big a GIF can I process?
Up to 50MB and roughly 16 megapixels per frame, with a soft cap of about 600 frames. The limit exists because every frame needs to fit inside your tab's memory as full-resolution RGBA pixels (four bytes per pixel). Most short loops, screen recordings, and reaction GIFs sit comfortably under that ceiling. If your GIF is larger, run the GIF Compressor or GIF Frame Skipper first to bring it down before applying further effects.
How are colours quantized in the output?
gifenc builds a fresh palette per frame using a wu-quant algorithm with up to 256 colours. This keeps colour-shifting effects (fades, glitch, brightness) accurate even when the source palette was tiny. You can lower the colour count in the Color Reducer / Compressor / Lossy Compressor tools to trade colour fidelity for smaller files.
Are transparent backgrounds preserved?
Yes — gifuct-js gives us a per-frame alpha channel from the original GIF's disposal data, and we composite frames into RGBA buffers so transparency survives every effect. When you re-encode, gifenc writes a 1-bit transparent palette index whenever the source alpha was zero, so transparent regions remain transparent in the output.
Does the loop count carry over?
Yes — when the source GIF declares a loop count via the NETSCAPE2.0 application extension, we read it during decoding and write the same value into the output container. If the source has no loop block (a one-shot GIF), the output also plays once. Tools that explicitly let you change loop behaviour (Loop Editor, Boomerang, Player) override this and write whatever loop count you choose.
Which browsers are supported?
Recent Chrome, Edge, Firefox, Safari, and other Chromium-based browsers all work. The tool only relies on the standard HTML5 Canvas API, ArrayBuffer, and Blob URLs, all of which have been universally supported for over a decade. Mobile browsers work too, although large GIFs may take noticeably longer because phone CPUs are weaker than desktop CPUs.
Is there a watermark or sign-up wall?
No. The tool is completely free, requires no account, attaches no watermark, and shows no popup ads on your output. A small fair-use throttle runs in the background to discourage automated abuse, but it does not affect normal one-off conversions. The downloaded GIF is exactly what gifenc wrote out from your edited frames — nothing more, nothing less.
Does GIF Frame Editor require a browser extension or plug-in?
No installation is needed. GIF Frame Editor runs as a normal web page, with no browser extension, no native helper, and no separate desktop client to download. That is partly a privacy choice — extensions can request broad permissions, while a regular page is sandboxed by default — and partly a convenience one: you can use GIF Frame Editor on any computer you have temporary access to without leaving anything installed on it.
Where does my file actually go when I use GIF Frame Editor?
Your file is processed inside your browser by standard browser APIs. The engine reads the file's bytes from your tab's memory, computes the result, and writes the result back into the tab. You can confirm what the page does by opening developer tools and watching the Network tab during a run — the requests you see are for the tool's static assets only.
Can I self-host GIF Frame Editor for my team?
GIF Frame Editor is a static page running an open-source engine in your browser, so a typical corporate firewall does not get in the way as long as it allows JavaScript to load from Favtoo. For teams that need to host it themselves on an internal network, the underlying engine (standard browser APIs) is open-source and can be packaged into a private build with the same behaviour. Reach out via the Contact page if that is something you are exploring.
Is GIF Frame Editor really free?
GIF Frame Editor is free to use. The processing runs in your browser, which keeps the per-user cost low enough that the tool can be offered openly. The download is the same file the engine produced — you can use it for as many runs as you need.
Is GIF Frame Editor lossless?
GIF Frame Editor is built to preserve quality wherever the underlying image format allows it. Operations that are mathematically lossless (e.g. structural transformations, lossless re-encoding) round-trip with no perceptible change. Operations that involve a lossy codec inevitably introduce small artefacts at the byte level, but the defaults aim at the sweet spot where output looks or sounds the same to a normal viewer or listener while still being meaningfully smaller or faster than the input.
Can I use GIF Frame Editor for commercial work?
GIF Frame Editor can be used for personal and commercial work alike — there is no separate "business" licence to purchase. The output you generate is yours to use however you want, including in client deliverables, internal documents, or commercial products. Favtoo's only ask is fair, individual use; the tool is not designed to be embedded as a backend service or wrapped behind an API for resale.
How fast is GIF Frame Editor?
Most jobs finish in seconds. Speed scales with input size and with how many CPU cycles your browser tab has available — the engine runs in your browser, so it shares resources with whatever else you have open. For inputs near the 50 MB ceiling, expect anywhere from a few seconds to roughly a minute on a typical laptop. Closing other heavy tabs noticeably speeds things up.
Can I call GIF Frame Editor from a script?
GIF Frame Editor is a browser-only tool by design and does not expose a hosted API. The reason is the same as the privacy story: there is no Favtoo backend doing the work, so there is no service to call. If you need to script the same transformation, the underlying engine (standard browser APIs) is open-source and can be used directly from your own code.
How is GIF Frame Editor different from desktop apps that do the same thing?
Desktop apps usually have more advanced features but require installation, maintenance and (often) a licence. Paid online tools are convenient but route your file through their servers and gate downloads behind accounts. GIF Frame Editor sits in between: free, instant, and private, but intentionally narrow in scope. For one-off jobs and the common image editing and conversion operations, it is usually the lowest-friction choice; for highly specialised work, a dedicated app is still the right answer.