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This online utility lets you analyze a GIF animation and extract detailed low-level debugging information from it. It prints all available information about a GIF, including its file size, width and height, the total number of frames, colors, loop count, and animation duration. You can also see the properties of individual frames, such as frame delays, frame transparency, and frame disposal flag, as well as print the global and local color palettes. Created by GIF experts from team Browserling.
This is a super useful browser-based GIF debugger that analyzes a GIF file byte-by-byte and outputs all possible information about it. The analyzer breaks a GIF into logical blocks, parses them, and shows the data about each block in text format. The first block is the general GIF information as well as the data from the Logical Screen Descriptor (LSD) block. It contains the main information about the input GIF – GIF file size (in bytes), the total duration of the animation (in seconds), the dimensions of the animation (in pixels), the total number of frames (as integer), the global color table (as a list of indexes and hex colors), as well as the data from the Netscape Loop Block that contains the number of animation repetitions (as an integer). The next block summarizes the information from Graphic Control Extension (GCE) blocks and prints all information about the frame delays (in milliseconds). Using this information, you can immediately see how long each frame is displayed on the screen. The next block outputs all the colors of the global palette in hexadecimal color format together with index positions of each color. The global palette, also known as the Global Color Table (GCT) contains the colors that can be used by all GIF frames if they don't define their own Local Color Table (LCT). The maximum number of colors is 256 and each color uses a unique sequential index value from 0 to 255. Next, you can explore individual GIF frames in more detail. To explore frame data, the program parses the Image Descriptor (ID) blocks. You can specify a frame number (for example "2"), several frame numbers (for example "3, 6"), a range of frame numbers (for example "4-6"), or all frames (the "*" symbol). The ID block contains information about coordinates of the north-west (upper-left) position of the frame and its width and height. Here you can also see the frame delay in milliseconds, its disposal method, as well as the transparency flag of the frame, the transparency color index, and the transparency color. You can also display the Local Color Table (LCT) of the frame as a separate block. If the frame has the LCT, then it uses the color data from it. If there is no LCT, then the frame uses the colors of the GCT. The analyzed GIF can also be observed in the browser and it can be stopped at a specific frame. Gifabulous!
In this example, we output byte-level overview information of a GIF file. We decode and display only the most important bit fields of the GIF header, including the byte count of the GIF file, its width×height dimensions, frame count value, color count value, and repetition count value. We also print information about the frame delays and display a full list of all 256 colors in the global palette. (Source: Pexels.)
In this example, we're debugging the last frame of an animated GIF of an owl turning its head. We parse the GCE (Graphics Control Extension) and Image Descriptor (ID) blocks of the 40th GIF frame and print the data found in these blocks in text format. The data includes the position and size of the frame, its delay, disposal method, and transparency information. We also print the local color palette (also known as LCT – Local Color Table) of this frame with all 128 color indexes that it defines. (Source: Pexels.)
In this example, we print the low-level GIF frame details from a Mortal Kombat animation sprite of Sonya Blade's victory pose. The sprite has many transparent regions, so in all eight frames you'll see that "transparent" is "true", as well as the transparency index and transparency color are set. We also display the main information about the GIF and all frame delays. (Source: Midway Games.)
Quickly view, play and download individual GIF frames.
Quickly create a sprite sheet from all GIF frames.
Quickly create a GIF animation from a sprite strip.
Quickly change the speed a GIF animation is played at.
Quickly flip a GIF animation horizontally or vertically.
Quickly reverse all frames in an animated GIF.
Quickly minify a GIF and make it smaller in size.
Quickly change the background color of an animated GIF.
Quickly change how many times a GIF gets repeated.
Quickly rotate a GIF animation by the given angle.
Quickly change the width and height of a static or animated GIF.
Quickly crop a region from a GIF animation.
Quickly redact sensitive information from a GIF.
Quickly pixelate any region in a GIF animation.
Quickly blur any region in a GIF animation.
Quickly sharpen any region in a GIF animation.
Quickly increase or decrease the brightness of a GIF.
Quickly increase or decrease the contrast of a GIF.
Quickly make any color in a GIF transparent.
Quickly fill transparent GIF regions with a solid color.
Quickly delete one or more frames from an animated GIF.
Quickly extract multiple frames from a GIF.
Quickly preview a GIF animation at any framerate (fast or slow).
Quickly shuffle frames of a GIF animation.
Quickly increase the size of a GIF.
Quickly change the total playback time of a GIF.
Quickly surround a GIF animation with a border.
Quickly remove the border that surrounds a GIF animation.
Quickly add a background to an animated GIF.
Quickly remove the background from an animated GIF.
Quickly add any text (captions, subtitles) on an animated GIF.
Quickly add a running time clock to a GIF animation.
Quickly add a counter that shows frame numbers.
Quickly round the corners of a GIF animation.
Quickly remove colors from a GIF and leave only gray shades.
Quickly cut a frame range or a time interval from a GIF.
Quickly decrease the framerate of a GIF animation.
Quickly increase the framerate of a GIF animation.
Quickly generate a solid color or color gradient GIF.
Quickly generate an animation with random color pixels.
Quickly generate a tiny 1x1 spacer GIF.
Quickly make a GIF loop back and forth.
Quickly draw random pixels on an animated GIF.
Quickly optimize a GIF animation to use less memory.
Quickly print low-level details about a GIF and its frames.
Create animated GIFs in your browser.
Freeze a GIF at a specific frame.
Change the order of frames in a GIF animation.
Insert one or more frames in a GIF animation.
Decrease the size of a GIF.
Smooth out the edges of a transparent GIF.
Add an audio track to a GIF.
Draw a GIF on different backgrounds to see how it looks.
Gradually fade-out the frames of a GIF.
Gradually fade-in the frames of a GIF.
Cross-fade a GIF frame by frame.
Cross-fade two GIF animations.
Smoothly transform one GIF into another GIF.
Stop looping the GIF and play it just once.
Change the delay between all GIF frames to the same value.
Change the framerate of a GIF.
Change the quality of a GIF.
Increase or decrease GIF canvas size.
Increase the width and height of a GIF.
Decrease the width and height of a GIF.
Create a chess game animation from a PGN file.
Create a go game animation from a SGF file.
Create a draughts/checkers game animation from a PDN file.
Generate a GIF animation of winning a Solitaire game.
Create a GIF animation of Game of Life.
Base64-encode a GIF.
Base64-decode a GIF.
Base58-encode a GIF.
Base58-decode a GIF.
Convert a sequential GIF to progressive GIF.
Convert a progressive GIF to a sequential GIF.
Convert an animated PNG to an animated GIF.
Convert an animated GIF to an animated PNG.
Convert an animated PNG to an animated GIF.
Convert an animated GIF to an animated Webp.
Convert an animated Webp to an animated GIF.
Convert a GIF animation to an AV1 animation (AVIF).
Convert an AV1 animation (AVIF) to a GIF animation.
Convert a GIF animation to a HEIF animation.
Convert a HEIF animation to a GIF animation.
Export a single frame from a GIF to PNG.
Convert a still PNG image to a static GIF.
Export a single frame from a GIF to JPEG.
Convert a still JPEG photo to a static GIF.
Export a single frame from a GIF to BMP.
Convert a still BMP file to a static GIF.
Export a GIF animation to a BPG animation.
Convert an animated BPG to an animated GIF.
Convert a GIF animation to an AVI video.
Convert an AVI video to a GIF animation.
Convert a GIF animation to a WMV video.
Convert a WMV video to a GIF animation.
Convert a GIF animation to an MP4 video.
Convert an MP4 video to a GIF animation.
Convert a GIF animation to an MKV video.
Convert an MKV video to a GIF animation.
Convert a GIF animation to a MOV video.
Convert a MOV video to a GIF animation.
Convert a GIF animation to GIF video (GIFV).
Convert a GIF video (GIFV) to a GIF animation.
Create a Data URI from a GIF animation.
Reconstruct a GIF from a Data URI.
Draw one or more GIF frames as ASCII art.
Create an animation from multiple ASCII art drawings.
Draw one or more GIF frames as ANSI art.
Create an animation from multiple ANSI art drawings.
Draw one or more GIF frames using Unicode glyphs.
Create a GIF from multiple Unicode drawings.
Draw one or more GIF frames using Braille characters.
Create a GIF animation from Braille characters.
Replace one color in a GIF with another.
Convert all colors in a GIF to just two black and white.
Find the color palette used in a GIF.
Find the color index used in a GIF.
Randomly change the color indexes of a GIF.
Remove colors from a GIF.
Run various color quantization algorithms on a GIF.
Create a GIF with more than 256 colors.
Convert a 256-color GIF to a 2-color GIF.
Convert a non-dithered GIF to a dithered GIF.
Merge dithered pixels and create a non-dithered GIF.
Change the delay interval between individual GIF frames.
Split a GIF into two or more GIFs.
Join two or more GIFs into a single GIF.
Shift GIF frames to the right or to the left.
Hide the selected area in a GIF by drawing a block over it.
Extract a part (a range of frames) from a GIF.
Create multiple GIF copies side-by-side.
Create multiple copies of individual GIF frames.
Skew a GIF animation by an angle.
Reverse a skew in a GIF animation.
Create a pixel whirl of any radius in a GIF.
Create a GIF that animates white noise.
Make a GIF animation go so slow that it appears almost static.
Create a static GIF that contains just one frame.
Generate a GIF that contains nothing.
Generate a GIF that contains a scrolling marquee.
Add a semi-transparent watermark to a GIF animation.
Remove a watermark from a GIF animation.
Extract all GIF frames in a folder and zip it up.
Add a hidden comment in GIF's metainfo section.
Clear all metainfo from a GIF.
Animate multiple GIFs at the same time side-by-side.
Add an animation effect to a message.
Layer two GIFs and put one GIF on top of another GIF.
Overlay an animated GIF on any image or photo.
Overlay any image or photo on an animated GIF.
Convert any image to a GIF that emulates slow Internet speed.
Create a GIF animation of a loading spinner.
Let Zalgo destroy a GIF animation.
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