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Awesome Demos & playgrounds Jev Projects

Explore an awesome collection of 67 verified open-source Demos & playgrounds Jev projects on bestjev. Compare GitHub stars, languages, repositories, and implementations.

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  1. f/jev-leftpad

    Demos & playgrounds
    82JavaScript

    Left-pad strings with TypeSafe AI's Jev. For reasons.

  2. achimala/jev-paint

    Demos & playgrounds
    50JavaScript

    Use Jev to make art!.

  3. andududu/jeview

    Demos & playgrounds
    39JavaScript

    An unofficial local visualizer for Jev (TypeSafe): a live view of every call your code makes. Not affiliated with TypeSafe AI.

  4. davila7/jev-explained

    Demos & playgrounds
    27TypeScript

    Jev Explained.

  5. karminski/Jev-Quantum

    Demos & playgrounds
    27Rust

    Random Jev-compatible baseline that emits Noul, Choice, and Score probabilities for mocks, lower-bound comparisons, and router evaluation.

  6. wobsoriano/is-jeven

    Demos & playgrounds
    27JavaScript

    Is it even? Ask Jev.

  7. bhaiG-de/jev-design-test

    Demos & playgrounds
    22TypeScript

    Jev shadcn-block generator.

  8. monteduro/killmyidea

    Demos & playgrounds
    21TypeScript

    Describe your startup idea. Jev decides: kill it, fix it or ship it.

  9. TypeSafeAI/typesafe-playground

    Demos & playgrounds
    20TypeScript

    Community playground with editable Jev use cases, games, dilemmas, challenges, and A/B comparisons.

  10. zszz3/Pi-Jev-Guide

    Demos & playgrounds
    20TypeScript

    Jev checks configurable Pi agent rules for risk, output redaction, repeated failures, and missing verification at selected workflow stages.

  11. mayank953/Jev

    Demos & playgrounds
    17JavaScript

    Six live, side-by-side demos of TypeSafe's Jev — a "System One" model that returns typed, probabilistic decisions (70–500 ms, $0.042 per 1M input tokens, output free) instead of generated text.

  12. utk2103/jev-studio

    Demos & playgrounds
    15Python

    if you're experimenting with jev it will be easier from here.

  13. BunsDev/typesafe-ai-playground

    Demos & playgrounds
    14TypeScript

    Community TypeSafe AI playground: 110 use cases, games, dilemmas and model challenges, with editable prompts, A/B comparisons and a mobile-friendly UI.

  14. lyramakesmusic/jevbot

    Demos & playgrounds
    13Python

    Discord bot demo that lets users converse with Jev-backed typed behavior.

  15. sandeco/pix-golpe

    Demos & playgrounds
    13Python

    Split-screen demo where Jev detects Pix-payment scams and traces the fraud chain.

  16. earlyaidopters/away-together-starter

    Demos & playgrounds
    12HTML

    Jev-inspired travel decision tutorial with classifier training; the browser demo uses recorded model outputs.

Category guide

What does the Demos & playgrounds category include?

Demos and playgrounds provide small, inspectable ways to learn and test Jev.

Projects include starter examples, interactive sandboxes, minimal reproductions, notebooks, and focused demonstrations of Jev primitives or integration patterns.

Demos & playgrounds FAQ

What qualifies for the Demos & playgrounds category?

Projects include starter examples, interactive sandboxes, minimal reproductions, notebooks, and focused demonstrations of Jev primitives or integration patterns.

How should I compare Demos & playgrounds projects?

Start with the documented use case, repository activity, primary language, license, and visible Jev implementation. GitHub stars are a dated discovery signal, not a quality score.

How does bestjev verify Demos & playgrounds entries?

bestjev checks public repositories, project-authored documentation, code, demos, and other visible evidence. Always confirm current behavior and compatibility in the upstream project.

Which sources support this category?

bestjev grounds this category in named primary sources: Official Jev documentation · Public GitHub repositories.

“Typed outputs that software can act on.”— TypeSafe AI
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Guide video: Explore the Showcase

Explore the Showcase

Browse real Jev demos by use case, search the complete collection, and open any card to watch the video with its original source.