Convert Garmin TCX to Markdown.
Drop a Garmin .tcx file and get a clean Markdown summary of every workout. It runs entirely in your browser, so your file never leaves your device.
Drag & drop your files
or
Optimize for AI & RAG
Extra cleanup for LLM ingestion: strip HTML, fix smart quotes, tidy Unicode and spacing.
Add YAML front matter
Prepend a metadata block (title, source, date, word & token counts) for knowledge bases and RAG.
Add table of contents
Build a linked index from the headings. Handy for long documents.
Export RAG chunks (.json)
Split the result into retrieval-ready chunks. Download per file from the result panel.
Most converters quietly upload your documents to a server. This one physically can't.
Your workout,
in plain words.
A .tcx file buries each run inside dense XML built for training software. Converting it pulls out the part you read at a glance: sport, distance, time and laps as tidy Markdown.
<TrainingCenterDatabase>
<Activities><Activity Sport="Running">
<Lap>
<DistanceMeters>5000</DistanceMeters>
<TotalTimeSeconds>1500</TotalTimeSeconds>
</Lap>
</Activity></Activities>
</TrainingCenterDatabase>
# Activity (TCX)
## Running
- **Distance:** 5.00 km
- **Time:** 25 min
- **Laps:** 1
Built for your
training log.
Garmin TCX in, a clean Markdown summary out, with no server and no account anywhere.
It never leaves your browser
Your .tcx is read and parsed on your device. Nothing is uploaded to any server, ever.
# Heading
- point one
3 chunks
AI & RAG ready
Optional cleanup, YAML front matter, a table of contents and RAG chunk export.
Works offline
Once the page has loaded you can switch off your connection and it keeps converting.
## Running
- Distance: 5.00 km
- Laps: 1
Each activity, summarised
Every activity gives you its sport, total distance, total time and lap count.
Unicode safe
Accents, symbols and non-Latin scripts come through intact as UTF-8.
Free, and unlimited
No sign-up, no quotas, no watermarks. Convert one file or a thousand; it all runs the same way, on your own device.
The summary,
not the trace.
Honest about what comes through, and what doesn't. These are the same notes the Formats list shows for TCX, so the page never drifts from what the converter really does.
Kept
4- Sport per activity
- Total distance
- Total time
- Lap count
Dropped
4- Trackpoints
- Heart rate
- Cadence
- Position
Sport: Running
Distance: 5.00 km
Time: 25 min
Laps: 1
TCX questions,
answered.
Everything worth knowing before you drop in a .tcx file.
Other converters.
Working with more than TCX files? These convert the same way: privately, in your browser.
FASTA to Markdown
.fasta · .fa
Biological sequence data.
FASTQ to Markdown
.fastq · .fq
Sequencing reads with quality.
GenBank to Markdown
.gb · .gbk
Annotated DNA sequences.
PDB to Markdown
.pdb
Protein 3D structures.
Newick to Markdown
.nwk · .tree
Phylogenetic trees.
GFF / GTF / BED to Markdown
.gff · .gtf · .bed
Genome feature annotations.
SAM to Markdown
.sam
Sequence alignment data.
MOL / SDF to Markdown
.mol · .sdf
Chemical structure files.