Platform Character Limit Validator
Platform Character Limit Validator
Paste your text and pick a platform to instantly check its character count against that platform's common limit — useful before posting a tweet, sending an SMS, or publishing a meta description.
The tool covers seven commonly used limits: X (Twitter) posts (280 characters), Instagram captions (2200), meta descriptions (158), title tags (60), SMS messages (160), Meta Ads primary text (125), and YouTube titles (100) — the remaining-character count goes negative once you're over the limit, showing exactly how much needs trimming. Keep in mind that some platforms count certain characters (like emoji or non-Latin scripts) differently than a simple character count, so treat these limits as reliable guidance rather than an exact platform-side validation.
- Covers 7 common limits: X (Twitter) posts (280), Instagram captions (2200), meta descriptions (158), title tags (60), SMS messages (160), Meta Ads primary text (125), and YouTube titles (100).
- Remaining characters can go negative if your text is over the limit, showing exactly how much to trim.
- Note: some platforms (like X) count certain characters or URLs differently in practice — this tool uses a straightforward character count as a close, general-purpose estimate.
Why do different platforms have different limits?
Each platform sets its own limit based on its interface and use case — short-form platforms like SMS and X favor brevity, while captions and descriptions allow more room.
Does this count spaces and punctuation?
Yes — every character, including spaces and punctuation, counts toward the total.
Platform Character Limit Validator


Paste your text and pick a platform to instantly check its character count against that platform's common limit — useful before posting a tweet, sending an SMS, or publishing a meta description.
The tool covers seven commonly used limits: X (Twitter) posts (280 characters), Instagram captions (2200), meta descriptions (158), title tags (60), SMS messages (160), Meta Ads primary text (125), and YouTube titles (100) — the remaining-character count goes negative once you're over the limit, showing exactly how much needs trimming. Keep in mind that some platforms count certain characters (like emoji or non-Latin scripts) differently than a simple character count, so treat these limits as reliable guidance rather than an exact platform-side validation.

- Covers 7 common limits: X (Twitter) posts (280), Instagram captions (2200), meta descriptions (158), title tags (60), SMS messages (160), Meta Ads primary text (125), and YouTube titles (100).
- Remaining characters can go negative if your text is over the limit, showing exactly how much to trim.
- Note: some platforms (like X) count certain characters or URLs differently in practice — this tool uses a straightforward character count as a close, general-purpose estimate.
Why do different platforms have different limits?
Each platform sets its own limit based on its interface and use case — short-form platforms like SMS and X favor brevity, while captions and descriptions allow more room.
Does this count spaces and punctuation?
Yes — every character, including spaces and punctuation, counts toward the total.
