llms.txt Formatter & Beautifier
Format and clean an llms.txt file without changing its important content. Fix Markdown spacing, headings, lists and links, then preview and download the improved file.
Paste your llms.txt content
Paste the raw Markdown content of your llms.txt file. The formatter will fix spacing, headings, and links.
What Is the llms.txt Formatter?
The llms.txt Formatter is a tool that takes an existing file and converts it into clean, consistent, readable Markdown without unnecessarily changing its meaning, URLs, descriptions, or section organization. It combines formatting, cleaning, beautifying, and repairing into a single workflow built around the principle of being lossless by default.
How the Formatter Works
When you click Format File, the tool parses your content as structured Markdown data rather than plain text, so it understands the difference between a project title, a summary blockquote, an introductory paragraph, and a link section. This lets it make precise, targeted corrections.
What the Formatter Fixes
The formatter corrects a wide range of common issues automatically. It normalizes heading spacing, standardizes list markers, and fixes colon spacing between a link and its description. It also normalizes blockquote spacing, corrects line endings, and removes trailing whitespace.
Formatter Modes
The Conservative mode applies only the safest, most unambiguous fixes. The Standard mode additionally normalizes blank lines and removes trailing whitespace. The Strict mode applies all Standard changes and enforces blank line separation between each structural block.
llms.txt Formatting Rules
Formatting rules follow the llms.txt proposal. Bullet lists should use standard hyphen markers, links must be formatted using Markdown brackets and parentheses, and sections should be clearly demarcated by headings. Headings must have a space after the hash symbol.
Before and After Example
A file with inconsistent spacing, mixed list markers (asterisks and hyphens), and missing blank lines will be transformed into a perfectly uniform document. The Difference view will highlight every single line that was modified so you can easily review the changes.
Formatter vs Cleaner vs Beautifier
While a cleaner might aggressively remove unused or malformed content, and a beautifier focuses purely on aesthetics, the Formatter performs structural normalization. It brings the syntax in line with parsing requirements while keeping your original content intact.
How Section Reordering Works
If enabled, the tool can automatically shift the "Optional" section to the bottom of the file as recommended by the standard. This ensures that context-limited AI systems process your most important primary resources first.
What the Tool Does Not Change
The Formatter will not delete your links, remove duplicate URLs, modify the wording of your descriptions, or change your external URLs. Any destructive or URL-altering changes are left for the Link Checker or manual review.
How to Format an llms.txt File
Simply paste your Markdown content into the input editor or provide a URL to a live file. Select your desired formatting mode and click Analyze. Review the changes in the Difference tab, and copy or download the finalized result.
Common Formatting Problems
The most common errors include missing spaces after heading hashes, inconsistent list markers, trailing spaces that can confuse parsers, and missing spaces between a link and its colon. The Formatter fixes all of these automatically.