ChanPrep
v3.1
Make any file fit. Auto-uploads to Catbox if too big.
Board
Choose board...
☆
⇵
Drop a file or URL, or click to browse
Any video, image, or GIF — drag files or direct URLs
Ctrl+V
to paste from clipboard
Fetch
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×
Trim & Crop Video
→
0:00
←
▶ Play
Loop
← Frame
Frame →
[ Start
End ]
Crop
Auto-Crop
Reset
480p
720p
1080p
Original
Estimated output
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Prepare File
Select board + file
Cancel
Advanced Settings
Format
Auto
WebM VP9
WebM VP8
MP4 H.264
WebP
JPEG
PNG
Quality
Maximum (2-pass)
High
Balanced
Small
WebM Title
Audio
Normal
Normalize (loudnorm)
Speed
1.0 = normal
Reverse
Transparent (alpha)
Fade in/out
HDR to SDR
Loop
Off
Crossfade
Ping-pong
Caption
Top
Bottom
...
Show Log
Download
Upload to Catbox
Litterbox
Expires:
1 hour
12 hours
24 hours
3 days
Re-encode with different settings
COPY
Sound Post Generator
Extract audio + upload to Catbox for [sound=] tag on muted boards
Audio quality:
48 kbps (voice)
64 kbps (default)
96 kbps (music)
128 kbps (high)
Format:
Opus
MP3
OGG Vorbis
Generate Sound Post Tag
Extract Audio Only (download)
COPY
Additional sound tracks (stacked [sound=] tags):
+ Add Audio Track
Generate Multi-Sound Tags
COPY
Links
Catbox
Litterbox
Cobalt
Imginn
Vocaroo
EZGif
Pixeldrain
Desuarchive
4plebs
4chan-X