Uwarp

Upload GIFs or still images, set the order, then click Combine GIFs to preview the merged animation here.

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GIF combiner & joiner

Free GIF combiner and GIF merger: combine GIFs, merge animated GIFs, and join GIF frames with JPG or PNG stills—reorder clips, set speed, boomerang loop.

What is a GIF combiner?

A GIF combiner (also called a GIF merger or GIF joiner) plays multiple animated GIFs—or GIFs mixed with still images—back to back as one animation. Upload clips, set order, adjust frame delay, optionally reverse or boomerang the sequence, then export a single GIF. This is sequential joining, not side-by-side collage, GIF-on-GIF overlay, or video export. Processing runs in your browser for privacy.

GIF joiner features

Merge GIFs and still images into one animation in the browser.

  • Merge multiple GIFs

    Combine GIFs in list order—animated clips and stills in one timeline.

  • Reorder join sequence

    Move clips up or down before merging so frames play A→Z or custom order.

  • Frame delay control

    Set global speed or keep each source GIF’s original frame timing.

  • Boomerang & reverse

    Reverse the full sequence or add a ping-pong boomerang loop.

  • Loop or play once

    Export a forever loop or a single-play animation.

  • GIF download

    Save the combined animation as gif-combiner.gif.

How to combine GIFs online

Steps to merge GIFs with this free GIF combiner.

  1. Add GIFs and images

    Drop or browse GIF, JPG, PNG, or WebP files (up to 24, 15 MB each).

  2. Set join order

    Use the list arrows so clips play in the order you want.

  3. Adjust timing & effects

    Pick frame delay, sequence mode, and loop settings.

  4. Combine and download

    Click Combine GIFs, preview the result, then Download GIF.

Tips for merging GIFs

Get cleaner joins and smaller files.
  • 01

    Match dimensions when possible

    Similar-sized GIFs center on the largest canvas—resize first if you need pixel-perfect alignment.

  • 02

    Use source timing for mixed speeds

    Enable Keep source GIF frame timing when each clip has its own pace.

  • 03

    Still images need delay

    JPG and PNG frames use the Frame delay slider—give text cards enough ms to read.

  • 04

    Trim before join

    Shorter inputs encode faster and produce smaller output files.

  • 05

    Preview loop setting

    Turn off Loop forever for one-shot story GIFs.

  • 06

    Need a grid layout?

    Export frames or use /merge-images for side-by-side still composites instead.

GIF Combiner Tools Compared — Which One Fits Your Workflow

How this free GIF combiner stacks up against other popular options.

  1. Ezgif.com

    Industry-standard GIF combiner with frame reordering, speed control, and resize options. Very popular but server-side processing with file size limits.

  2. GIFSpeed.com

    Complete GIF toolbox including combine. WebAssembly for local processing. Many tools in one.

  3. JoinGIF.ImageOnline.co

    GIF combiner with boomerang and reverse effects. Speed and resize controls. Privacy-focused browser processing.

  4. Clideo.com

    Online GIF combiner with timeline editing. Free tier with watermark and file size limits.

  5. GIF Combiner

    Combine multiple GIF animations into one. Arrange order, set output size. All processing in your browser.

When to merge GIFs

Typical uses for a GIF combiner and joiner.

  • Reaction chains

    Combine two GIFs into one meme sequence for chat or social posts.

  • Storyboard loops

    Join animated GIFs with title cards exported as PNG stills.

  • Before/after clips

    Merge GIF captures in order instead of switching between files.

  • Tutorial steps

    Stitch short screen recordings saved as GIF into one demo.

  • Boomerang edits

    Ping-pong a short clip without a separate editor.

  • Quick prototypes

    Test animation timing before moving to a desktop video tool.

Why use this GIF merger

Benefits of browser-based GIF combining.

  • No upload to server

    Private client-side decode and encode—files never leave your browser.

  • Mix formats

    Combine animated GIFs with JPG, PNG, or WebP in one join.

  • Free

    Unlimited joins and downloads without sign-up or watermarks.

  • Reorder before merge

    Fix clip order without re-uploading.

  • Source timing option

    Keep original GIF frame delays when merging animations.

  • Instant preview

    See the joined GIF before saving.

Technical details

How client-side GIF joining works here.
GIF decode
gifuct-js parses animated GIFs and decompresses frames with transparency.
Still image decode
JPG, PNG, and WebP load through createImageBitmap as single frames.
Compositing
Each frame centers on the max width and height across all inputs.
GIF encode
gifenc quantizes RGBA frames and writes delay and loop metadata.
Sequence modes
Normal, reverse, or boomerang (forward plus reversed middle frames).
Limits
24 files max, 15 MB per file, browser memory applies for large joins.

Sources & References

Authoritative references on the GIF format, frame-based animation, the Canvas rendering technology this tool uses, and the PNG output format.
  • “The Graphics Interchange Format is a bitmap image format that supports up to 8 bits per pixel, allowing a single image to reference a palette of up to 256 distinct colors.”
    — Wikipedia — GIF

    GIF bitmap image format: This tool uses gifuct-js to decode GIF frames and gifenc to re-encode them into a single combined animation — working directly within the GIF format's frame-based animation model. en.wikipedia.org/wiki/GIF

  • “The Canvas API provides a means for drawing graphics via JavaScript and the HTML canvas element.”
    — MDN Web Docs — Canvas API

    Canvas API (client-side frame compositing): Decoded GIF frames and still images are composited onto Canvas elements for processing, centering, and re-encoding — all running locally in your browser. developer.mozilla.org/en-US/docs/Web/API/Canvas_API

  • “PNG supports lossless data compression, making it useful for storing graphics that need to be edited repeatedly without losing quality.”
    — W3C — PNG Specification (overview)

    PNG image format: While this tool outputs GIF, PNG's lossless compression principles inform how still image frames (JPG, PNG, WebP) are handled as single-frame inputs in the combining workflow. w3.org/TR/PNG/

  • “Animation is the method by which still figures are manipulated to appear as moving images, typically created by displaying a sequence of images at a rapid rate.”
    — Wikipedia — Animation

    Frame-based animation principles: Combining multiple GIF or image sequences into a single animated GIF involves frame assembly and timing — this tool merges separate animations into a single frame sequence. en.wikipedia.org/wiki/Animation

Frequently Asked Questions

Quick answers about this tool—open a question to read more.