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One language. Connected possibilities.

Small pieces.
Real possibilities.

Turn ideas into programs you can see. Connect blocks, transform data, and follow the flow from input to answer.

Open-source language. Create a free account to use the hosted studio.

A little logic goes a long waynumber
Input21
Multiply× 2
Output42
Same logic. A clearer view.

From an idea to a working flow

Make the connections.

01 / EXPLORE

Start with a small example.

Create a blueprint from the Echo template in the studio. Follow the connection from input to output.

input → output
02 / RUN

See your program respond.

Open the blueprint in the studio, press Test, enter a JSON value and select Submit. Watch it appear in Output.

Real runtime · live results
03 / CREATE

Make something of your own.

Connect operators and save your blueprint. Add a REST-API deployment to give your program its own public HTTPS address.

Your next idea

Room to experiment

Your account.
Your blueprints.

Work with numbers, strings, JSON, CSV, streams, and flow control. The studio saves your blueprints to your account. Run Slang locally for unrestricted access to files and private services.

Set up Slang locally ↗

A few things to know

Sign in at slang.run and keep the recovery code shown at signup. Your saved blueprints follow your account across browsers. Email recovery is not enabled.

Public deployments run at <deployment-id>.slangapps.com. Anyone with their URL can invoke them. Capacity is limited to five deployments per account; stop or remove programs you no longer need.