Social media character limit checker

Paste the exact copy, choose its destination, and receive the character count, platform limit, remaining allowance, and a clear pass-or-fail result. Spaces, punctuation, line breaks, and emoji are included, which makes the result useful for final editorial checks before a post enters a publishing queue or approval workflow.

Check the final copy, not an earlier draft

Character limits matter at the point of publication, so submit the complete text that will actually be posted. Include the headline, body, hashtags, mentions, links, punctuation, deliberate spacing, and line breaks. The checker measures Unicode code points, which means a typical emoji is treated as one character rather than as two internal JavaScript code units. Every visible space and every line break still contributes to the total. After selecting a platform, the result shows the normalized platform name, the measured character count, the applicable character limit, the number of remaining characters, and whether the text fits. A remaining value of zero means the post uses the full allowance and still passes. A negative value means the draft is over the limit; its absolute value tells you exactly how many characters must be removed. This direct result is more useful than a generic counter because the same copy can pass on one network and fail on another. Run the check again after any last-minute edit, especially when adding campaign tags, account mentions, disclosure language, or a call to action.

Interpret the count consistently

The checker applies one stable counting rule to every supported destination. It counts letters, digits, symbols, punctuation marks, spaces, and line breaks as part of the post. It also counts Unicode by code point, avoiding the common surprise in which many emoji appear to consume two positions in a basic JavaScript string-length calculation. The returned character_limit is the standard post limit stored for the chosen platform, while character_count describes only the supplied text. Subtracting those figures produces remaining_characters. Positive values show available room, zero shows an exact fit, and negative values show the overage. The within_limit flag gives automation a simple Boolean decision without requiring another calculation. Platform names are normalized to lowercase, but an unsupported name produces an invalid-input error instead of silently selecting a fallback. That behavior protects scheduled publishing systems from approving copy against the wrong rule. Platform policies can change, so treat this tool as a precise check against its published supported limits and recheck important campaigns when destination requirements are updated.

Use the result in editorial and publishing workflows

A manual check is useful before an individual post goes live, while the API is designed for repeatable content operations. A content editor can check a draft before requesting approval. A campaign manager can test adapted versions of the same announcement for several destinations and see where copy needs to be shortened. A publishing integration can reject an over-limit item before it reaches a scheduler, returning the negative remaining count to explain the required edit. Because the algorithm is deterministic and uses no network, identical text and platform input always produce the same result. That makes the output suitable for validation rules, test fixtures, spreadsheets, content-management hooks, and preflight steps in a social publishing pipeline. The request costs $0.002 through the API, and the unit is one checked post. Keep each request focused on one exact post and one destination; checking variants separately preserves a clear audit trail. If a post is too long, shorten low-value repetition first, then rerun the complete final version so that changed punctuation, tags, and spacing are included in the decision.