Oh My Maps! Blog
Practical guides to making world maps in the browser — no software to install, no account, no watermark.
How to Make a Custom World Map Online (Free, No Sign-Up)Start here
A complete walkthrough of building a custom world map in the browser: painting countries, selecting whole continents, patterns, labels and flags, a legend, projections, and exporting a print-ready file.
How to Create a Choropleth Map from Spreadsheet Data
Paste a CSV or TSV of country values and get a shaded choropleth map: matching countries, choosing sequential or diverging scales, equal intervals vs quantiles vs custom thresholds, and exporting with a generated legend.
How to Make a Map of Countries You've Visited
Build a travel map of the countries you've been to in a few minutes: paint them, separate 'lived in' from 'passed through', add a legend, and export a print-ready image or a shareable link.
Which Map Projection Should You Use? Equal Earth vs Mercator vs Robinson (and 4 more)
A practical guide to the seven world map projections in Oh My Maps! — what each one distorts, what it preserves, and which to pick for a travel map, a choropleth, a navigation chart or a slide.
Nothing to read first. The editor opens on a world map you can start painting straight away — it runs entirely in your browser and saves as you go.
Open the editor