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Should really be replaced with something newer, probably in SVG, but will require redrawing it.

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Emojitracker 💫 tracks realtime emoji usage on Twitter.


Emojitracker is a complex project with a service-oriented architecture, and thus has now been split up into multiple repositories. This repository mainly just serves as table of contents of sorts. Major components of the project are listed below.


Bad and somewhat outdated diagram of how the main parts fit together in production: emojitracker-infrastructure

Core Applications

The core applications of Emojitracker. Note that while these are open source for educational purposes, they are currently all rights reserved. Please contact me directly if you want to use them for something.

The core applications are now mostly located in the Emojitracker GitHub Organization, including some old deprecated stuff not mentioned above.

Libraries and Tools

Most of the generalizable and useful pieces of Emojitracker have been carved out into maintained open-source libraries. These libraries are all freely licensed (see individual repositories for details).

Emoji Encoding

  • emoji_data.rb Utility library for handling the Emoji vs Unicode nightmare (Ruby).
  • emoji-data-js Utility library for handling the Emoji vs Unicode nightmare (NodeJS port).
  • exmoji Utility library for handling the Emoji vs Unicode nightmare (Elixir/Erlang port).

Emoji Assets

  • emojistatic Generates static Emoji assets for a public CDN.
  • cssquirt Embeds images (or directories of images) directly into CSS via the Data URI scheme.


  • sseserver High-performance Server-Sent Events endpoint for Go.
  • sse-bench Benchmarks and load tests Server-Sent Events endpoints.

The Emojitracker APIs

Emojitracker also provides a REST API and Streaming API.

Other Information

The narrative version of how version 1.0 of this project was built is in the Medium post "How I Built Emojitracker", and the followup "How I Kept Building Emojitracker". Note however, both are now quite out of date, and do not reflect a substantial amount of change over the past few years.


💫 track ALL the emoji


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