Mastodon Line Breaker
A Mastodon line breaker keeps line breaks and paragraph spacing in your toots, which matters because limits vary by instance (often 500 characters). Lay out your lines and copy the result into the composer.
“Keep gaps” puts an invisible character on blank lines so platforms that strip empty lines still show the spacing.
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Start freeHow to use this tool
- Type or paste your text with a blank line between paragraphs.
- Choose Keep gaps for invisible spacers, or choose Plain line breaks.
- Copy the result into the platform and check the preview before publishing.
Example
Input: a hook line, a blank line, two lines of detail, a blank line, and a call to action. Keep gaps outputs the same lines with an invisible zero-width space on each blank line, so the gaps survive pasting into fields that trim empty lines.
What the result means
Keep gaps adds zero-width spaces, which count as characters. The platform controls the final display, and some fields still trim spacing. This tool does not connect to your account or publish.
Where to go next
Frequently asked questions
What is the character limit on Mastodon?
It depends on the instance — the default is 500 characters, but some servers allow more. Line breaks count toward whatever limit your instance sets.
Why did my spacing change when I posted to Mastodon?
Pasting from other apps can collapse blank lines. This tool inserts an invisible separator so your spacing is preserved on any instance.
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