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Letter.md

Letter.md

ChatGPT plugin by GUANXUN HUANG · Review Markdown with AI

Productivity v1.0.0 Created Jul 22, 2026 Website ↗ Open in ChatGPT ↗

Data updated · Last checked

Track this plugin
Directory search
#1
for “letter”
ChatGPT visibility
28 answers checked · Sign up to see
Category page
—
search only, no category page
Listing score
55/100
leaders average 66

Keyword gaps?Searches where competitors rank and Letter.md is not in the results.

SearchResultsBest competitorTheir position
literature24Arca FDA, Trials & PubMed#2
9 more gapsSign up free →

Listing check?What to fix in the listing and how much each item adds to the listing score (55/100; category leaders average 66).

  • !
    Put a search term in the name Search rank?Directory search ranks name matches first: 53% of top-3 results have the search term in the name. Searches for a brand name itself are not tracked.
    The name has none of the tracked search terms.
    8 of 20 category leaders do this
    0 / 30
5 more checksSign up free →

Try a new name or short description →

In ChatGPT conversations?How often ChatGPT mentions Letter.md when people ask common Productivity questions.

Visibility
In a suggestion card
Answers checked
Mentioned most
ChatGPT visibilitySign up free →

About Letter.md

Letter.md is the top result for “letter” in ChatGPT directory search, ahead of 47 other plugins. It doesn't show up for “literature”, where Arca FDA, Trials & PubMed ranks #2.

Letter.md lets people read, search, and review Markdown documents from ChatGPT. It can create traceable comments and reviewable edit suggestions, inspect document images, compare versions, and open the complete realtime collaborative editor.From the plugin’s directory listing

Try asking

@Letter.md Review my Q3 Product Brief.
@Letter.md Suggest edits to my document.
@Letter.md Compare my document versions.

Competitors?Plugins that show up in the same tracked searches as Letter.md.

  1. LetterLab Word SolverLetterLab Word SolverZovo
  2. LetterScriptLetterScriptLetterScript LLC
  3. Cover Letter WriterCover Letter WriterSyed Fasih Haider Raza Rizvi
  4. Mail A LetterMail A LetterMail A Letter
  5. Website MakerWebsite MakerAI Research Plus
  6. Arca FDA, Trials & PubMedArca FDA, Trials & PubMedArca
  7. LoopsLoopsLoops
  8. Mergewell Mail MergeMergewell Mail MergeZovo

In the directory

Featured page
Not on it
Category page
Search only
Same job
624 notes & docs plugins
Listed since
Oct 12, 2026

Recent changes

  1. Back is back in the directory
  2. Removed was removed from the directory
6 more changesSign up free →

Alternatives to Letter.md?Plugins that share searches with Letter.md and do the same job.

PluginMade forWorks inComes first for
Cover Letter WriterWrite tailored cover letters —Worldwide—

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Letter.md: questions and answers

What does Letter.md do?

Review Markdown with AI. Letter.md lets people read, search, and review Markdown documents from ChatGPT. It can create traceable comments and reviewable edit suggestions, inspect document images, compare versions, and open the complete realtime collaborative editor.

How do I use Letter.md in ChatGPT?

Install it from the ChatGPT plugin directory, then mention @Letter.md in a chat. Its listing suggests asking “Review my Q3 Product Brief.”, “Suggest edits to my document.” or “Compare my document versions.”

Which plugins compete with Letter.md?

Letter.md shares directory searches with LetterLab Word Solver, LetterScript, Cover Letter Writer and Mail A Letter.