What is the Twitch chat character limit?

Twitch chat messages are capped at 500 characters. This is a hard limit — longer messages are blocked rather than truncated, so you must shorten the text before it will send.

How long can a Twitch stream title be?

A Twitch stream title can be up to 140 characters. Front-load the game name and your hook, since the title is what viewers see on your channel card and in directory listings.

What are the rules for a Twitch username?

A Twitch username is 4 to 25 characters, using only letters, numbers and underscores, and is effectively permanent. Your display name is a capitalisation variant of that same username, also up to 25 characters.

How long can my Twitch bio be?

Your Twitch bio, shown in the About panel under your stream, is limited to 300 characters. Info panel descriptions are more generous at around 1000 characters and support basic markdown.

Why does the counter show two numbers?

The main count is Unicode code points, which matches how a human perceives characters including most emoji. The smaller figure is UTF-16 code units, which is how some systems measure length and can be higher for certain emoji.

Twitch Character Limit Counter

Email me this result

Get this tool's output sent to your inbox, plus one useful tool a week. No spam, unsubscribe any time.

Twitch enforces different character limits across chat, titles, usernames, bios, panels and clips — and several are hard caps that block your text rather than trimming it. This counter loads the real limit for each field and shows your count live so you trim before Twitch rejects the message.

How it works

Pick a field and the tool loads its actual maximum, then counts your text as you type. It measures Unicode code points — the way a person perceives characters, including most emoji — rather than raw UTF-16 units, so the count matches what you see. A progress bar fills as you approach the limit, turning amber at 90 percent and red once you exceed it, with a precise characters-remaining (or characters-over) readout below.

Chat message      = 500   (hard cap, message blocked if exceeded)
Stream title      = 140
Username          = 25    (4–25, letters/numbers/underscore)
Display name      = 25
Bio               = 300
Panel description = 1000
Clip title        = 100
Whisper / DM      = 500

Tips and notes

Chat messages and whispers share the same strict 500-character cap and are blocked when exceeded, so check long copy-pasted messages here first. Keep stream titles tight and front-load the game and hook, since only the start is visible on small cards. The counter also surfaces the UTF-16 code-unit count, which can run higher than the perceived character count for some emoji — useful when a field feels full sooner than expected. Everything runs locally in your browser.