Convert OpenStreetMap to Markdown.
Drop an .osm file and get a tidy Markdown summary of its nodes, ways and relations. 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.
Map data,
at a glance.
An .osm file packs thousands of nodes, ways and relations into raw XML that is hard to read by eye. The summary turns it into a short Markdown overview with counts and named elements.
<osm>
<node id="1" lat="38.7" lon="-9.1">
<tag k="name" v="City Hall"/>
</node>
<way id="2">...</way>
</osm>
# OpenStreetMap
- Nodes: 1
- Ways: 1
- Relations: 0
## Named elements
- City Hall
Everything you
actually need.
OpenStreetMap XML in, a clean Markdown summary out, with no server and no account anywhere.
It never leaves your browser
Your .osm is read and parsed on your own 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.
- Nodes: 1
- Ways: 1
- Relations: 0
- City Hall
Counts and named elements
The output tallies nodes, ways and relations, then lists every named element.
Unicode safe
Accents, symbols and non-Latin scripts come through intact as UTF-8.
Free, and unlimited
No sign-up, no quotas, no watermarks. Summarise one file or a thousand; it all runs the same way, on your own device.
What the summary
keeps.
Honest about what comes through, and what doesn't. These are the same notes the Formats list shows for OpenStreetMap, so the page never drifts from what the converter really does.
Kept
3- Node, way and relation counts
- List of name tags (up to 200)
- A summary heading
Dropped
3- Coordinates
- Other tags
- Element references
Nodes: 1
Ways: 1
Relations: 0
- City Hall
- Main Bridge
- River Path
lat="38.7" lon="-9.1"
tag k="highway" v="primary"
nd ref="1001"
OSM questions,
answered.
Everything worth knowing before you drop in an .osm file.
Other converters.
Working with more than map data? These convert the same way: privately, in your browser.
Notation3 to Markdown
.n3
Notation3 RDF source.
RDF/XML to Markdown
.rdf · .owl
RDF & OWL ontologies.
JSON-LD to Markdown
.jsonld
Linked-data JSON.
SPARQL results to Markdown
.srx · .srj
SPARQL query results.
Email to Markdown
.eml
Single email messages.
Mbox to Markdown
.mbox
Mailbox archives.
Saved web page to Markdown
.mht · .mhtml
MHTML single-file pages.
vCard to Markdown
.vcf
Contact cards.