About this hashtag formatter & counter
Clean a supplied list of tags, remove exact duplicates, and count them. Separate tags with commas or whitespace. Leading hash signs and punctuation are removed; letters, numbers and underscores remain. A single hash is then added to each tag. Use this workspace to prepare a result you can review before putting it to use. All processing takes place on your device, without an account or an upload of your inputs. Check the examples to understand the expected output, read the limitations for the supported scope, and reset the form when you want to start a separate task.
How it works
Separate tags with commas or whitespace. Leading hash signs and punctuation are removed; letters, numbers and underscores remain. A single hash is then added to each tag.
Try these examples
design, tools, #design
#design #tools; count 2
Hello-world, #hello_world
#Helloworld #hello_world; count 2
Limitations & privacy
Formats your words; it does not suggest trending or relevant tags. Deduplication is case-sensitive. Up to 1,000 tags and 100,000 input characters. Platform-specific rules and limits are not checked.
Inputs and results stay in this browser. Only tool identifiers are stored for your recently used tools. You can clear that history from the directory.
A few good questions
How is the result produced?
Separate tags with commas or whitespace. Leading hash signs and punctuation are removed; letters, numbers and underscores remain. A single hash is then added to each tag.
Are my inputs sent to a server?
No. Inputs and results are processed locally and are not uploaded or included in telemetry. Copying or downloading is your choice.
What are the limits of this tool?
Formats your words; it does not suggest trending or relevant tags. Deduplication is case-sensitive. Up to 1,000 tags and 100,000 input characters. Platform-specific rules and limits are not checked.
Updated September 19, 2026