Find Similar Subreddits
Search a community, get an interactive overlap graph — neighbors are subreddits that shared audiences in the public sayit-style dataset.
Browser-only · Open data · Inspired by Andrei Kashcha open-source work
Anvaka — free tools for interactive maps & graph visualization
Turn huge, list-shaped data into maps you can move through — see structure and discover connections across Reddit, cities, and GitHub. No install, no login.
- No uploads to our servers for the graph tools
- Always free in the browser
- Reddit map · Similar subs · City roads · GitHub galaxy
Tools
Four ways to explore — each one uses position and proximity as the main signal, not another spreadsheet column.
Map of Reddit
116,000+ subreddits in one galaxy — pan, zoom, and search. Every dot is a community; clusters are shared audience neighborhoods.
City Roads
Draw every road inside a city boundary as minimalist line art — powered by OpenStreetMap, export SVG or PNG.
Map of GitHub
700,000+ repositories by co-star similarity — browse the open-source sky and spot related projects by neighborhood, not keywords alone.
About Anvaka
Anvaka is the handle of Andrei Kashcha, an independent developer and visualization engineer. For over a decade, projects on github.com/anvaka have helped millions explore data beyond lists and pivot tables — through maps, graphs, and playful spatial layouts.
His work clusters around three ideas: graph visualization (how things connect), geographic rendering (roads and cities as art), and community analysis (how online spaces relate). This site bundles those experiments with clearer docs and navigation — still rooted in the same open data spirit.
What makes these tools different
Most dashboards trap insight in grids. Here, the interface is a navigable space: position carries meaning, distance reads as similarity, and density hints at popularity. You skim the way you wander a city — follow shapes that pull you in.
That matters most for network data: Reddit subs linked by overlapping readers, GitHub repos linked by overlapping stargazers, cities drawn by their own street graphs. Each becomes a landscape you pace through at human speed.
Open source roots
Everything here builds on public datasets and MIT-friendly repos. Subreddit similarity flows through the Similar Subreddits finder; roads stream from OpenStreetMap; the GitHub galaxy aggregates public star graphs credited to anvaka pipelines.
This frontend is independent — it exists to improve access and storytelling around those originals. Fork or inspect the upstream projects anytime on GitHub.
How to use these tools
All four run entirely in the browser — no account, no fee. Below is the cheat sheet; each tool page dives deeper with screenshots-level guidance.
- Similar Subreddits — search a name, click nodes for previews, double-click to pivot. Open →
- Map of Reddit — wheel-zoom and drag-pan; search jumps any community into view. Explore →
- City Roads — geocode a place, tweak strokes, export SVG or PNG. Generate →
- Map of GitHub — search repos or roam clusters by language/ecosystem. Explore →
Frequently asked questions
- Is this the official anvaka website?
- This is an independent site that hosts and documents tools originally created by Andrei Kashcha. The official source code lives at github.com/anvaka. This site is not affiliated with Reddit, GitHub, or OpenStreetMap.
- Are these tools free?
- Yes — completely free, no account required, no usage limits. All tools run entirely in your browser.
- Do these tools work on mobile?
- The graph tools (Similar Subreddits, Map of Reddit, Map of GitHub) support touch gestures for pan and zoom. City Roads works best on desktop due to the detail level of the output.
- Where does the data come from?
- Subreddit data comes from anvaka public similarity datasets. City road data comes from OpenStreetMap. GitHub repository data comes from public star records aggregated by anvaka.