Who is librrd playground for?

librrd playground is an open-source project built for developers and technical writers.

Does librrd playground have a free plan?

Yes — librrd playground is free to use.

What platforms does librrd playground run on?

librrd playground runs on the web and the command line.

Is librrd playground still maintained?

Unverified. librrd playground has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

What are alternatives to librrd playground?

Similar projects tracked by PulseGate include git-build-commit, funkuino, and click-docs.

Who develops librrd playground?

librrd playground is developed by EPFL, based in Switzerland.

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librrd playground

Name: librrd playground
Author: EPFL

epfl.chInfrastructure🇨🇭

librrd is an online playground developed at EPFL that lets users write railroad diagrams using a simple expression language and style them with a CSS-inspired stylesheet. It supports layout controls, alignment, colors, and SVG export. The tool is useful for visualizing grammars, APIs, and command-line syntax in documentation.

FreeWebCLI

Visit epfl.ch

Overview

4 features

librrd playground is an Other dev tools project. Creating, styling, and exporting railroad (syntax) diagrams for documentation and language specifications. librrd playground is an open-source project aimed at developers and technical writers. It is available for free. It ships for the web and the command line.

Behind librrd playground is EPFL, based in Switzerland. Key capabilities include Railroad Diagrams, Live Preview, and CSS-like Styling.

Summary written by a language model from the project’s public pages.

Railroad Diagrams
Live Preview
CSS-like Styling
SVG Export

Built with & integrations

Runs on

BrowserCLI

Trust & compliance

Verified signals

HTTPSFree tier

Indexing history

What PulseGate has recorded for this listing

Indexed22 Jul · 05:39 UTC
Librrd Playground verified against its public source
Source: PulseGate · Open

Frequently asked questions about librrd playground

What does librrd playground do?: Creating, styling, and exporting railroad (syntax) diagrams for documentation and language specifications. It is catalogued under Other dev tools on PulseGate.
Who is librrd playground for?: librrd playground is an open-source project built for developers and technical writers.
Does librrd playground have a free plan?: Yes — librrd playground is free to use.
What platforms does librrd playground run on?: librrd playground runs on the web and the command line.
Is librrd playground still maintained?: Unverified. librrd playground has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
What are alternatives to librrd playground?: Similar projects tracked by PulseGate include git-build-commit, funkuino, and click-docs.git-build-commit funkuino click-docs
Who develops librrd playground?: librrd playground is developed by EPFL, based in Switzerland.

At a glance

Platforms: Cli · Web
Languages: English
First seen: 22 Jul 2026
Built for: developers and technical writers
Model: Open source
Solves: Creating, styling, and exporting railroad (syntax) diagrams for documentation and language specifications.

Developer

🇨🇭EPFL

Live coverage

Identity confidence: High · 90.8
Indexed: 22 Jul 2026
Lifecycle: Alive
First seen: Jul 2026
Last seen: 22 Jul 2026

Identity audit (13)

Slug: librrd-playground-epfl-ch
Lifecycle state recorded: 22 Jul 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 22 Jul 2026
Timeline basis: Indexed-at chronology (no inferred launch/funding milestones).
Name from: Derived from the project's own page and URL.
Category from: Assigned by a language model.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 27 Jul 2026
Canonical URL: https://systemf.epfl.ch/etc/librrd

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Also in Other dev tools

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