SmithLog — Universal Cabrillo → ADIF Converter

A lightweight, browser-based tool built by a ham, for hams to convert contest logs from Cabrillo format to ADIF, ready for uploading to QRZ.

Download link: Click here to download SmithLog

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Why SmithLog?

I'm not saying that SmithLog is the best program in the world to do this, there are other programs that do a very good job and offer more flexibility. ADIF Master and Contest LogChecker are better for heavy post-Processing, while my program does something specific like converting data without having a program installed on your computer, plus it's the same program across all devices you use since everything is in a single HTML file.

Features

• Automatic contest detection with provision for comments.
• Quick and easy: Paste or upload your Cabrillo log, click Analyze (F4), then Generate ADIF (F10). Done.
• ADIF 3.1.6 compliant: Outputs ADIF according to the latest published specification.
• Smart Contest Detection: Automatically identifies CONTEST_ID. If unknown, the contest name is added as a comment.
• Interactive Column Mapping: Click on yellow "unknown" headers to map to the correct ADIF fields (e.g. STX, SRX, STX_STRING, SRX_STRING).
• Propagation and Meta Fields: Optional global fields for TX_PWR, K_INDEX, A_INDEX, SFI and a global comment to be added to the QSO to QRZ.
• Web-based: No installation, works on all operating systems and web servers.
• Global Options: specify TX Power, K-Index, A-Index, SFI and a global comment that is added to all comments at once.
• QRZ-ready: ADIF file is uploaded cleanly to QRZ and other services.

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Instructions

1. Load your log Upload .log/.txt or paste Cabrillo content.
2. Analyze (F4) SmithLog detects competition and columns.
3. Check column mapping Click on yellow headers to map ADIF fields. Use STX/SRX for numbers, STX_STRING/SRX_STRING for text exchanges.
4. (Optional) Fill in global fields Add TX Power, K-Index, A-Index, SFI and global comment.
5. Generate ADIF (F10) Download .adi ready for upload.

Comparison with other good tools

There are several excellent tools for Cabrillo → ADIF conversion:

• ADIF Master (Windows) – Advanced ADIF editor with import from Cabrillo, CT, TR, etc. Great for batch editing and statistics.
• LogConv (Windows) – Simple format converter (Cabrillo ↔ ADIF, CT9/10, EQF, TR Log).
• CBR2ADIF (CLI) – Command line tool for Cabrillo → ADIF, good for automation.
• Contest LogChecker (Windows) – Powerful validator and converter with additional features.

Where SmithLog is better:

1. Browser-based, no installation Works on macOS/Linux without admin rights.
2. **Intuitive mapping for contest Exchanges, it only shows you want you need.
3. ADIF 3.1.6 compliance by design Ensures modern compatibility with QRZ and other services.
4. **Simple tool that do one thing.

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Format references

• ADIF 3.1.6: https://adif.org/316/ADIF_316.htm
• Cabrillo v3: https://wwrof.org/cabrillo/cabrillo-v3-header/

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FAQ

Does SmithLog include both STX and STX_STRING? Yes, numeric and textual exchanges are preserved.

Does it run on macOS/Linux? Yes, it is browser-based.

Does it run on a web server? Yes, it was designed to run on a web server from the start on the Your Club web server, but it uses reference material from GitHub.

Can I contribute back to SmithLog? Yes you can, make your changes and submit them via GitHub and if I like them I'll add them to main, include your name with the changes. I also welcome suggestions, you can find my contact information on QRZ.

Can anyone use it? Yes, you can find it useful, you can use it, and it's completely free and open source.

**Support if I make a mistake? No, I don't offer individual support if you have mapped your data incorrectly and you discover that there is incorrect data on QRZ. You are responsible for mapping data for export.

Changelog

GHv1.1 – 2025-12-10 (latest version)

• New compact and modern UI – significantly better on laptops, tablets and phones
• Completely redesigned footer with larger Norway badge and prominent GitHub link
• Version checker is now 100 % secure – uses GitHub Releases API (no longer downloads raw HTML)
• Generated ADIF files are tagged with SmithLog GHv1.1
• Smaller buttons, fonts and spacing for a cleaner look on smaller screens
• Improved accessibility (ARIA attributes added)
• Scrollable help modal on small devices
• Minor humorous console messages for curious users
• Reduced network usage – update check now checks only every 12 hours

GHv1.0 – 2025-12-09

• First public release
• Fully functional Cabrillo → ADIF converter

ScreenShots

here is some images of the program:

When you start the program

Before you have analyzed the Cabrillo file

After you have analyzed the Cabrillo file

License

MIT (see LICENSE in the repo). ``