# Extract a Video's First & Last Frame Grab a video's first and last frame and stitch them into one before/after image — side by side or stacked. Free, in your browser with ffmpeg, nothing uploaded. ## Run it - **CLI:** `gizza tool video-first-last-frame-extractor 'url=https://example.com/input' 'layout=horizontal' 'format=png'` - **Web:** https://gizza.ai/tools/video-first-last-frame-extractor/ - **Agents:** machine-readable descriptor (parameters JSON Schema) at https://gizza.ai/tools/video-first-last-frame-extractor/tool.json ## Inputs - `file` — Video _(file; accept: video/*)_ - `layout` — Join layout _(field)_ - `format` — Output format _(field)_ ## Output - First + last frame (image) ## Query parameters Open the tool pre-filled and auto-run via URL: - `layout` — Join layout - `format` — Output format - `url` — fetch the input file from a public URL (CORS-permitting) Example: `https://gizza.ai/tools/video-first-last-frame-extractor/?url=https://example.com/input&layout=horizontal&format=png` --- ## First frame vs last frame, in one image Load a video and this tool grabs its **very first frame** and its **very last frame** and joins them into a single **before/after image** — placed side by side or stacked top over bottom. Everything runs locally in your browser with ffmpeg (WebAssembly); the video is never uploaded. Both frames come from **one decode pass** and no timestamp is needed: the graph splits the stream, keeps frame 0 on one branch, and reverses the other branch so *its* frame 0 is the original last frame — then glues the two together. Because the page renders one output file, you get the pair as this single stitched image rather than two separate downloads. Choose the **layout**: - **Side by side (horizontal)** — first frame on the left, last frame on the right. Good for wide comparisons and thumbnails. - **Stacked (vertical)** — first frame on top, last frame on the bottom. Good for portrait/vertical clips or a tall before/after strip. Then pick **PNG** (lossless, crisp for UI recordings and text) or **JPG** (smaller, better for photographic footage). The source dimensions are preserved, so a 1280×720 clip stitches to **2560×720** side by side, or **1280×1440** stacked. ### Worked example Upload a 64×64 test clip whose first frame is red and last frame is blue, pick **Side by side** and **PNG**. The tool returns a **128×64** image — solid red on the left, solid blue on the right — showing the clip's start-vs-end change at a glance. Right-click to save it, or use the Download link. ## Handy for - Spotting how a clip changes from start to finish (a before/after at a glance). - Making a two-panel thumbnail or cover image from a single video. - Picking **start** and **end** keyframes to feed AI video / image-to-video tools. ## Limits and good to know - Reaching the **last** frame requires reversing the decoded video, which buffers it in memory, so the input is capped (**25 MiB**) — trim or downscale huge files first. This is a "grab two frames" tool, not a transcoder. - The **two frames share the source dimensions**, so side by side doubles the width and stacked doubles the height; both halves always align. - Works with anything ffmpeg can decode in the browser — MP4/H.264, WebM, MOV and more. The output is always a single **image**, not a video. ## FAQ
Can I download the first and last frame as two separate images? Not from this page — it produces **one** stitched image with both frames joined (side by side or stacked), which the browser can render and download as a single file. To crop the halves apart afterward, or to grab one exact frame at a chosen timestamp on its own, use an image cropper or the **Extract a Video Frame** tool instead.
What's the difference between the horizontal and vertical layout? Only how the two frames are arranged. **Horizontal** places the first frame left and the last frame right (the output is twice as wide as the source). **Vertical** stacks the first frame on top and the last on the bottom (twice as tall). The frames themselves are identical either way — pick whichever fits your clip's shape.
Do I need to know the video's length or set a timestamp? No. The tool always takes frame 0 (the first frame) and the final frame, whatever the duration is. It finds the last frame by reversing the stream, so you never enter a time — just upload and run.
Which format should I choose, PNG or JPG? **PNG** is lossless and stays crisp on screen recordings, UI, and text — pick it when you want an exact copy of the frames. **JPG** is smaller and fine for photographic or camera footage where a little compression won't show. Both keep the source dimensions.
Is my video uploaded anywhere? No. The video is decoded and the frames are stitched entirely in your browser with WebAssembly ffmpeg. Nothing leaves your device, and there's no account or upload step.
## Related tools - [Change Video Speed](https://gizza.ai/tools/change-speed/): Speed up or slow down a video right in your browser, keeping audio in sync — pick a speed factor (0.25x–4x). Re-encodes locally with ffmpeg, nothing is uploaded, free. - [Extract Video Frames to a Contact Sheet](https://gizza.ai/tools/extract-frames/): Sample frames from a video by interval, fps or scene change and tile them into one contact-sheet image. Free, in your browser with ffmpeg, nothing is uploaded. - [GIF to MP4 / WebM](https://gizza.ai/tools/gif-to-mp4/): Convert an animated GIF into a much smaller MP4 or WebM video, right in your browser. Re-encodes locally with ffmpeg (H.264 / VP9), nothing is uploaded, free. - [Pad a Video to an Aspect Ratio](https://gizza.ai/tools/video-aspect-pad/): Letterbox or pillarbox a video to 9:16, 1:1, 16:9 or any preset ratio with colored bars or a blurred background — free, in your browser, nothing is uploaded. - [Blur or Pixelate a Region in a Video](https://gizza.ai/tools/video-blur-region/): Blur or pixelate a fixed rectangle — a license plate, name tag or logo — on every frame of a video, right in your browser. Nothing is uploaded, runs locally, free.