Hashtag Formatter

What it does

Copied hashtags arrive with commas, duplicate tags and broken punctuation. This formatter strips invalid characters, removes duplicates, optionally lowercases everything and returns a clean space-separated list with the right number signs.

Clean, deduplicate and format hashtags for any social platform.

How to use it

Here is the short version of using Hashtag Formatter.

• Paste the hashtag list — Commas, spaces and new lines are all accepted as separators.
• Choose clean-up rules — Deduplicate, lowercase and cap the number of tags.
• Copy the result — Use the formatted list in a caption, description or comment.

Features that matter

What Hashtag Formatter does well.

• Nothing leaves your device — The work happens in your browser tab. There is no upload endpoint in this app, so your files and text cannot be stored, logged or seen by us.
• No upload wait — You skip the round trip to a server entirely. Results are limited by your own CPU, not by network speed or queue size.
• Free, no account, no quotas — No sign-up wall, no watermark, no daily limit. Optional accounts only exist to save favourites and presets across devices.