Add csv-to-markdown-table extension

[k-narusawa]

Description

CSV to Markdown Table is a bidirectional converter that allows users to quickly convert between CSV/TSV and Markdown table formats using clipboard operations.

Features

• 3 conversion commands: CSV/TSV → Markdown, Markdown → CSV, Markdown → TSV
• Automatic format detection: Detects whether clipboard contains CSV, TSV, or Markdown table
• One-command operation: Simple clipboard-based workflow with visual feedback

Use Cases

• Converting spreadsheet data to Markdown for documentation (GitHub README, Notion, etc.)
• Converting Markdown tables back to CSV/TSV for spreadsheet applications
• Quick data format transformation without leaving Raycast

Example

CSV → Markdown:

Input:  name,age,city
        John,30,Tokyo

Output: | name | age | city |
        | --- | --- | --- |
        | John | 30 | Tokyo |

Markdown → CSV:

Input:  | name | age |
        | --- | --- |
        | John | 30 |

Output: name,age
        John,30

Screencast

[Add screenshots/screencast here]

Checklist

• I read the extension guidelines
• I read the documentation about publishing
• I ran npm run build and tested this distribution build in Raycast
• I checked that files in the assets folder are used by the extension itself
• I checked that assets used by the README are placed outside of the metadata folder

[raycastbot]

Congratulations on your new Raycast extension! 🚀

Due to our current reduced availability, the initial review may take up to 10-15 business days.

Once the PR is approved and merged, the extension will be available on our Store.

[greptile-apps]

Greptile Overview

Greptile Summary

Adds a new Raycast extension for bidirectional conversion between CSV/TSV and Markdown table formats using clipboard operations. The extension provides three no-view commands that automatically detect input format and convert data between CSV, TSV, and Markdown tables. Implementation includes format detection logic, conversion utilities with unit tests, and proper error handling for invalid clipboard data.

Confidence Score: 2/5

• Moderate risk due to unhandled edge cases with special characters that will cause data corruption
• The extension has a critical data integrity issue: CSV/TSV cells containing pipe characters (|) will break Markdown table formatting, creating malformed output with incorrect column counts. While this won't cause runtime crashes, it will produce incorrect results for common real-world data. The test coverage also lacks validation of the reverse conversion function and edge cases with special characters. These issues affect core functionality and should be addressed before merge.
• extensions/csv-to-markdown-table/src/util/converter.ts needs special character escaping logic

Important Files Changed

File Analysis

Filename	Score	Overview
extensions/csv-to-markdown-table/src/util/converter.ts	2/5	Implements CSV/TSV to Markdown conversion; missing escape handling for pipes and special characters in cell values
extensions/csv-to-markdown-table/src/util/converter.test.ts	3/5	Tests CSV/TSV to Markdown conversion; missing tests for reverse conversion and edge cases with special characters

[greptile-apps]

_{3 files reviewed, 3 comments}

_{Edit Code Review Agent Settings | Greptile}

[0xdhrv]

Thanks for your contribution 🔥

We already have an extension in the Store that provide markdown table functionality. Could we consider enhancing the existing extension below instead of creating another one?

• Markdown Table to Excel -- by @victorGPT

If there are unique features or workflows you’re aiming to add, we’d love to hear them and see if they can be integrated into to avoid duplication and improve discoverability.