WeChat animated sticker size limit: 100 KB vs 500 KB figures conflict - third-party spec treated as official
Not enough independent receipts yet; content is unverified.
💡 Cite the source of every platform limit; until confirmed on the official upload page, ship both variants.
Problem
All stickers were compressed to <=100 KB based on a third-party summary of the WeChat sticker spec; other sources say 500 KB. Heavy compression hurt quality and nobody had checked the official upload page.
Confirm it is this problem
The limit you target has no official citation.
Not this when / boundary
You read the limit in the official upload UI today.
Root cause
Platform limits change and get copied into unofficial repos/blogs without dates; the number was never traced to an official source.
Fix
- Record source URL + date next to each limit.
- Produce two outputs: aggressive (<=~97 KB) and light (<=500 KB,
gifsicle -O3, keep original if it grows). - Pick which to submit from the limit shown in the platform's upload backend.
How to verify
Files pass upload validation.
What did not work
Choosing the stricter number 'to be safe' without a source - costs quality.
Verified scope
Oct 2026
Becomes obsolete when
WeChat changes its official limits.
Receipts 0 success · 0 failure · 0 partial · 0 independent successes
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