Gif debugger
World's simplest gif toolThis 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.
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What is a gif debugger?
learn more about this toolThis 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!
Gif debugger examples
Click to useGeneral GIF Information
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.)

GIF Information
---------------
GIF size: 608,232 bytes (593.98kb)
GIF length: 3.6 second(s)
GIF width/height: 366×300 pixels
number of frames: 36
number of colors: 256
loop count: 0 (endless)
Frame Delay Information
-----------------------
frames 1-36: 100ms
Global Palette Colors
---------------------
0: #050c22
1: #091333
2: #0d0806
3: #0e1b01
4: #13160f
5: #170e0a
6: #171c2b
7: #181714
8: #1b2f04
9: #1d2945
10: #1e1b0b
11: #1e1c1c
12: #1f0d08
13: #1f1b16
14: #202833
15: #232621
16: #260d07
17: #26300a
18: #291c0f
19: #2a374f
20: #2b2822
21: #2b3033
22: #304912
23: #323c0b
24: #332a21
25: #333130
26: #333837
27: #341e0c
28: #352e0f
29: #353c41
30: #354660
31: #364c1e
32: #394143
33: #394a2d
34: #394e0d
35: #3b0a03
36: #3b4348
37: #3c2e26
38: #3c3931
39: #3f4547
40: #405d10
41: #444b4d
42: #444f22
43: #454535
44: #46200b
45: #464e56
46: #46632e
47: #473311
48: #484c0e
49: #4a5358
50: #4a5e7b
51: #4a661f
52: #4b3025
53: #4d3929
54: #4f610f
55: #506a30
56: #514944
57: #515b60
58: #524535
59: #52565a
60: #554224
61: #555f67
62: #557010
63: #565a56
64: #575324
65: #585235
66: #593212
67: #595e5b
68: #596b24
69: #5a5449
70: #5a6b34
71: #5b674b
72: #5d666b
73: #5d738d
74: #5d7b2e
75: #5e6973
76: #5e7a44
77: #626e73
78: #666e73
79: #687276
80: #6a584a
81: #6a645d
82: #6a741a
83: #6c787e
84: #6c872f
85: #6d3012
86: #6d3f18
87: #6d4322
88: #6d6b2f
89: #6e4735
90: #6e853b
91: #6f5736
92: #6f654b
93: #701404
94: #706f39
95: #708519
96: #715525
97: #71874d
98: #737449
99: #737c81
100: #747f85
101: #758290
102: #76655d
103: #768288
104: #777466
105: #7a858a
106: #7a933c
107: #7b94b3
108: #7b974f
109: #7c888e
110: #7c8ea2
111: #7e8b91
112: #7f8586
113: #81715e
114: #81756d
115: #83744b
116: #838d93
117: #848072
118: #869399
119: #878651
120: #879d63
121: #888671
122: #889d54
123: #899278
124: #8a756a
125: #8d979b
126: #8e260c
127: #8e6d30
128: #8f5729
129: #906f3d
130: #909da3
131: #93442a
132: #937770
133: #948954
134: #958965
135: #96a7b3
136: #97887b
137: #979f53
138: #985a3b
139: #989f63
140: #997548
141: #9a927d
142: #9b9f7c
143: #9c3c19
144: #9ca0a0
145: #9ca7ad
146: #a2b45c
147: #a69182
148: #a69658
149: #a6a069
150: #a6aeb3
151: #a79342
152: #a7a27e
153: #a7c0dc
154: #aab4ba
155: #aba7a0
156: #abb577
157: #ac7768
158: #ac9d91
159: #ada17f
160: #adb1ae
161: #b0482a
162: #b2a77e
163: #b3b98f
164: #b5bcbf
165: #b69e52
166: #b6a498
167: #b6a980
168: #b9c4c9
169: #bbc163
170: #bc5a39
171: #bca267
172: #bdb77b
173: #be6a44
174: #bebd93
175: #bfa9a0
176: #bfb8aa
177: #c2c3a9
178: #c2cb79
179: #c3b2a7
180: #c5bcb7
181: #c6c390
182: #c9c8c8
183: #cbb9ac
184: #cdcaaa
185: #ce9f7a
186: #d0704a
187: #d18965
188: #d1ce95
189: #d1d1c8
190: #d2c4bd
191: #d3cdb8
192: #d57859
193: #d6885a
194: #d8dddb
195: #d9d5aa
196: #dad5bd
197: #dfd1c9
198: #e28b67
199: #e7e0c9
200: #0c0a0c
201: #100f0f
202: #ebe6d7
203: #9ba7ac
204: #96aa35
205: #9da9af
206: #a2adb2
207: #adb8be
208: #8e99a0
209: #263c08
210: #959439
211: #b3c051
212: #85962d
213: #a2b63c
214: #b5c0c6
215: #97a2a9
216: #8e9ba1
217: #819420
218: #e5e8e7
219: #100d09
220: #cbd3d8
221: #d1d8dd
222: #0b0c07
223: #130f0d
224: #a7b3b9
225: #d4dce0
226: #92a1a9
227: #18180c
228: #cfd7dc
229: #c6cfd4
230: #949fa5
231: #99a5ab
232: #aab6bc
233: #080806
234: #cdd6db
235: #9facb2
236: #bdcad4
237: #2e4804
238: #c8d1d6
239: #d8e0e4
240: #c0cace
241: #95a2a8
242: #bec8cc
243: #a3afb6
244: #a5b1b7
245: #afbbc0
246: #b1bcc3
247: #c2ccd0
248: #8c9ba1
249: #d2dade
250: #c3cdd1
251: #a3afb4
252: #d6dee3
253: #bfcad0
254: #c1cbd1
255: #000000
Required options
Display general GIF information
such as size, dimensions,
number of frames, color
count, and looping.
such as size, dimensions,
number of frames, color
count, and looping.
Display indexes and colors of
the global GIF palette.
the global GIF palette.
Display detailed information
about individual frames.
about individual frames.
Enter frame number(s) you
want to get more info about.
(A comma-sep list or a range.)
want to get more info about.
(A comma-sep list or a range.)
Display indexes and colors in
the local frame palette.
the local frame palette.
Display summary about all
GIF frame delays.
GIF frame delays.
Select this option to enable
the built-in online GIF player.
the built-in online GIF player.
Last Frame Analysis
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.)

Frame #40:
----------
x: 0
y: 0
width: 180
height: 290
delay: 10ms
disposal: 1
transparent: true
transparency index: 83
transparency color: #e9b38a
Local Palette Colors (frame #40)
--------------------------------
0: #130c08
1: #1c1714
2: #251b16
3: #2f1308
4: #31231c
5: #332d2a
6: #352c28
7: #371f16
8: #442d24
9: #443a37
10: #452518
11: #4a4543
12: #51362c
13: #562614
14: #574b47
15: #583528
16: #58463e
17: #5b504e
18: #5e5554
19: #5f2b1a
20: #684538
21: #685956
22: #6b3a27
23: #6c5046
24: #6e6362
25: #765c55
26: #784937
27: #78554a
28: #786258
29: #7a6a67
30: #7d7474
31: #836558
32: #857776
33: #876d65
34: #87746c
35: #89594a
36: #8d7c79
37: #8f8483
38: #935138
39: #93634b
40: #946958
41: #957568
42: #957e78
43: #98837b
44: #998987
45: #a18c88
46: #a5725d
47: #a67b6a
48: #a79593
49: #a88778
50: #aa9185
51: #ac9994
52: #ae5230
53: #af7053
54: #b29c98
55: #b5846e
56: #b98d79
57: #b9a093
58: #b9a49f
59: #bb9789
60: #bba8a5
61: #bbb4b3
62: #c2aca7
63: #c5afaa
64: #c79881
65: #c9b2ad
66: #ca9171
67: #caa897
68: #cab5b2
69: #d3ac98
70: #d3bcb5
71: #d7a787
72: #d7b8a9
73: #d8c9c4
74: #d9c3bb
75: #ddd5d2
76: #e2753c
77: #e4b9a0
78: #e9b591
79: #e9d4c8
80: #f0cdb0
81: #f3e7dd
82: #f4c49d
83: #000000
84: #000000
85: #000000
86: #000000
87: #000000
88: #000000
89: #000000
90: #000000
91: #000000
92: #000000
93: #000000
94: #000000
95: #000000
96: #000000
97: #000000
98: #000000
99: #000000
100: #000000
101: #000000
102: #000000
103: #000000
104: #000000
105: #000000
106: #000000
107: #000000
108: #000000
109: #000000
110: #000000
111: #000000
112: #000000
113: #000000
114: #000000
115: #000000
116: #000000
117: #000000
118: #000000
119: #000000
120: #000000
121: #000000
122: #000000
123: #000000
124: #000000
125: #000000
126: #000000
127: #000000
Required options
Display general GIF information
such as size, dimensions,
number of frames, color
count, and looping.
such as size, dimensions,
number of frames, color
count, and looping.
Display indexes and colors of
the global GIF palette.
the global GIF palette.
Display detailed information
about individual frames.
about individual frames.
Enter frame number(s) you
want to get more info about.
(A comma-sep list or a range.)
want to get more info about.
(A comma-sep list or a range.)
Display indexes and colors in
the local frame palette.
the local frame palette.
Display summary about all
GIF frame delays.
GIF frame delays.
Select this option to enable
the built-in online GIF player.
the built-in online GIF player.
Analyze all GIF Frames
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.)

GIF Information
---------------
GIF size: 23,899 bytes (23.34kb)
GIF length: 2.85 second(s)
GIF width/height: 154×203 pixels
number of frames: 8
number of colors: 256
loop count: 0 (endless)
Frame Delay Information
-----------------------
frames 1-3, 5-7: 100ms
frame 4: 250ms
frame 8: 2000ms
Frame #1:
---------
x: 0
y: 0
width: 154
height: 203
delay: 10ms
disposal: 2
transparent: true
transparency index: 232
transparency color: #00ffff
Frame #2:
---------
x: 0
y: 0
width: 154
height: 203
delay: 10ms
disposal: 2
transparent: true
transparency index: 0
transparency color: #000700
Frame #3:
---------
x: 0
y: 0
width: 154
height: 203
delay: 10ms
disposal: 2
transparent: true
transparency index: 0
transparency color: #000700
Frame #4:
---------
x: 0
y: 0
width: 154
height: 203
delay: 25ms
disposal: 2
transparent: true
transparency index: 0
transparency color: #000700
Frame #5:
---------
x: 0
y: 0
width: 154
height: 203
delay: 10ms
disposal: 2
transparent: true
transparency index: 0
transparency color: #000700
Frame #6:
---------
x: 0
y: 0
width: 154
height: 203
delay: 10ms
disposal: 2
transparent: true
transparency index: 0
transparency color: #000700
Frame #7:
---------
x: 0
y: 0
width: 154
height: 203
delay: 10ms
disposal: 2
transparent: true
transparency index: 0
transparency color: #000700
Frame #8:
---------
x: 0
y: 0
width: 154
height: 203
delay: 200ms
disposal: 2
transparent: true
transparency index: 0
transparency color: #000700
Required options
Display general GIF information
such as size, dimensions,
number of frames, color
count, and looping.
such as size, dimensions,
number of frames, color
count, and looping.
Display indexes and colors of
the global GIF palette.
the global GIF palette.
Display detailed information
about individual frames.
about individual frames.
Enter frame number(s) you
want to get more info about.
(A comma-sep list or a range.)
want to get more info about.
(A comma-sep list or a range.)
Display indexes and colors in
the local frame palette.
the local frame palette.
Display summary about all
GIF frame delays.
GIF frame delays.
Select this option to enable
the built-in online GIF player.
the built-in online GIF player.
All gif tools
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.
Coming soon These gif tools are on the way
GIF Creator
Create animated GIFs in your browser.
Pause a GIF
Freeze a GIF at a specific frame.
Rearrange GIF Frames
Change the order of frames in a GIF animation.
Add Frames to a GIF
Insert one or more frames in a GIF animation.
Unzoom a GIF
Decrease the size of a GIF.
Refine GIF Edges
Smooth out the edges of a transparent GIF.
Add Sound to GIF
Add an audio track to a GIF.
See How a GIF Looks on Various Backgrounds
Draw a GIF on different backgrounds to see how it looks.
Fade-out a GIF
Gradually fade-out the frames of a GIF.
Fade-in a GIF
Gradually fade-in the frames of a GIF.
Cross-fade GIF Frames
Cross-fade a GIF frame by frame.
Cross-fade Two GIFs
Cross-fade two GIF animations.
Morph One GIF to Another
Smoothly transform one GIF into another GIF.
Stop GIF Loop
Stop looping the GIF and play it just once.
Normalize GIF Speed
Change the delay between all GIF frames to the same value.
Change GIF Framerate
Change the framerate of a GIF.
Change GIF Quality
Change the quality of a GIF.
Change GIF Canvas Size
Increase or decrease GIF canvas size.
Make a GIF Bigger
Increase the width and height of a GIF.
Make a GIF Smaller
Decrease the width and height of a GIF.
Convert PGN to GIF
Create a chess game animation from a PGN file.
Convert SGF to GIF
Create a go game animation from a SGF file.
Convert PDN to GIF
Create a draughts/checkers game animation from a PDN file.
Create a Solitaire Effect GIF
Generate a GIF animation of winning a Solitaire game.
Animate Game of Life
Create a GIF animation of Game of Life.
Convert GIF to Base64
Base64-encode a GIF.
Convert Base64 to GIF
Base64-decode a GIF.
Convert GIF to Base58
Base58-encode a GIF.
Convert Base58 to GIF
Base58-decode a GIF.
Convert Non-interlaced GIF to Interlaced GIF
Convert a sequential GIF to progressive GIF.
Convert Interlaced GIF to Non-interlaced GIF
Convert a progressive GIF to a sequential GIF.
Convert APNG to GIF
Convert an animated PNG to an animated GIF.
Convert GIF to APNG
Convert an animated GIF to an animated PNG.
Convert APNG to GIF
Convert an animated PNG to an animated GIF.
Convert GIF to Webp
Convert an animated GIF to an animated Webp.
Convert Webp to GIF
Convert an animated Webp to an animated GIF.
Convert GIF to AVIF
Convert a GIF animation to an AV1 animation (AVIF).
Convert AVIF to GIF
Convert an AV1 animation (AVIF) to a GIF animation.
Convert GIF to HEIF
Convert a GIF animation to a HEIF animation.
Convert HEIF to GIF
Convert a HEIF animation to a GIF animation.
Convert GIF to PNG
Export a single frame from a GIF to PNG.
Convert PNG to GIF
Convert a still PNG image to a static GIF.
Convert GIF to JPG
Export a single frame from a GIF to JPEG.
Convert JPG to GIF
Convert a still JPEG photo to a static GIF.
Convert GIF to BMP
Export a single frame from a GIF to BMP.
Convert BMP to GIF
Convert a still BMP file to a static GIF.
Convert GIF to BPG
Export a GIF animation to a BPG animation.
Convert BPG to GIF
Convert an animated BPG to an animated GIF.
Convert GIF to AVI
Convert a GIF animation to an AVI video.
Convert AVI to GIF
Convert an AVI video to a GIF animation.
Convert GIF to WMV
Convert a GIF animation to a WMV video.
Convert WMV to GIF
Convert a WMV video to a GIF animation.
Convert GIF to MP4
Convert a GIF animation to an MP4 video.
Convert MP4 to GIF
Convert an MP4 video to a GIF animation.
Convert GIF to MKV
Convert a GIF animation to an MKV video.
Convert MKV to GIF
Convert an MKV video to a GIF animation.
Convert GIF to MOV
Convert a GIF animation to a MOV video.
Convert MOV to GIF
Convert a MOV video to a GIF animation.
Convert GIF to GIFV
Convert a GIF animation to GIF video (GIFV).
Convert GIFV to GIF
Convert a GIF video (GIFV) to a GIF animation.
Convert GIF to Data URL
Create a Data URI from a GIF animation.
Convert Data URL to GIF
Reconstruct a GIF from a Data URI.
Convert GIF to ASCII Art
Draw one or more GIF frames as ASCII art.
Convert ASCII Art to GIF
Create an animation from multiple ASCII art drawings.
Convert GIF to ANSI Art
Draw one or more GIF frames as ANSI art.
Convert ANSI Art to GIF
Create an animation from multiple ANSI art drawings.
Convert GIF to Unicode Art
Draw one or more GIF frames using Unicode glyphs.
Convert Unicode Art to GIF
Create a GIF from multiple Unicode drawings.
Convert GIF to Braille Art
Draw one or more GIF frames using Braille characters.
Convert Braille Art to GIF
Create a GIF animation from Braille characters.
Change Colors in a GIF
Replace one color in a GIF with another.
Make GIF Black and White
Convert all colors in a GIF to just two black and white.
Extract GIF Colors
Find the color palette used in a GIF.
Extract GIF Color Index
Find the color index used in a GIF.
Randomize GIF Color Index
Randomly change the color indexes of a GIF.
Reduce GIF Colors
Remove colors from a GIF.
Re-quantize GIF Colors
Run various color quantization algorithms on a GIF.
Create a True Color GIF
Create a GIF with more than 256 colors.
Create a Binary Color GIF
Convert a 256-color GIF to a 2-color GIF.
Add Dithering to a GIF
Convert a non-dithered GIF to a dithered GIF.
Remove Dithering From a GIF
Merge dithered pixels and create a non-dithered GIF.
Change Delay of Frames
Change the delay interval between individual GIF frames.
Split a GIF
Split a GIF into two or more GIFs.
Join GIFs
Join two or more GIFs into a single GIF.
Shift a GIF
Shift GIF frames to the right or to the left.
Hide a Part of a GIF
Hide the selected area in a GIF by drawing a block over it.
Slice a GIF
Extract a part (a range of frames) from a GIF.
Duplicate a GIF
Create multiple GIF copies side-by-side.
Duplicate GIF Frames
Create multiple copies of individual GIF frames.
Skew a GIF
Skew a GIF animation by an angle.
Unskew a GIF
Reverse a skew in a GIF animation.
Swirl a GIF
Create a pixel whirl of any radius in a GIF.
Generate White Noise GIF
Create a GIF that animates white noise.
Create a Quasistatic GIF
Make a GIF animation go so slow that it appears almost static.
Create a Single-frame GIF
Create a static GIF that contains just one frame.
Create an Empty GIF
Generate a GIF that contains nothing.
Watermark a GIF
Add a semi-transparent watermark to a GIF animation.
Convert a GIF to a ZIP Archive
Extract all GIF frames in a folder and zip it up.
Add a Comment to a GIF
Add a hidden comment in GIF's metainfo section.
Delete GIF Metainfo
Clear all metainfo from a GIF.
Create a GIF of GIFs
Animate multiple GIFs at the same time side-by-side.
Create an Animated Message
Add an animation effect to a message.
Put One GIF on Another GIF
Layer two GIFs and put one GIF on top of another GIF.
Put a GIF on an Image
Overlay an animated GIF on any image or photo.
Put an Image on a GIF
Overlay any image or photo on an animated GIF.
Emulate a Slow Image
Convert any image to a GIF that emulates slow Internet speed.
Create a Loading GIF
Create a GIF animation of a loading spinner.
Glitch a GIF
Let Zalgo destroy a GIF animation.
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