Form engine and visual builder. Describe a form as JSON: conditions, cross-field and async validation, computed values, repeatable groups, wizard steps. The builder makes the same schema by drag and drop and emits the value type in TypeScript.
Form engine and visual builder
Describe a form as JSON: conditions, cross-field and async validation, computed values, repeatable groups, wizard steps. The builder makes the same schema by drag and drop and emits the value type in TypeScript.
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Form engine and visual builder. Describe a form as JSON: conditions, cross-field and async validation, computed values, repeatable groups, wizard steps. The builder makes the same schema by drag and drop and emits the value type in TypeScript.
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Form engine and visual builder. Describe a form as JSON: conditions, cross-field and async validation, computed values, repeatable groups, wizard steps. The builder makes the same schema by drag and drop and emits the value type in TypeScript.
© 2026 Kirill Levin
Demo • Canvas 2D
Multiplayer • three.js
Multiplayer • Device Motion
Demo • three.js
Demo • Angular 22
Demo • Angular 22
Demo • Angular 22
Demo
Form engine and visual builder. Describe a form as JSON: conditions, cross-field and async validation, computed values, repeatable groups, wizard steps. The builder makes the same schema by drag and drop and emits the value type in TypeScript.
Form engine and visual builder
Describe a form as JSON: conditions, cross-field and async validation, computed values, repeatable groups, wizard steps. The builder makes the same schema by drag and drop and emits the value type in TypeScript.
Arcade GamesEight arcade games for one thumb
Boat MoveA co-op boat campaign
Just JumpA TV party game with phones as controllers
Rocket SimRocket launch simulator
Pulse AnalyticsBI dashboard and report builder
Collab BoardCollaborative kanban with no backend
@usertrv/uiAngular UI kit on the CDK7 items
Type help to see the list of commands.
kirill@usertrv ~ % whoami
Kirill Levin (usertrv) — frontend engineer
Saint Petersburg · 5+ years · remote, hybrid, office
Open to offers.
kirill@usertrv ~ % cat skills.txt | head
Angular 5+ yrs, v14–22
TypeScript 5+ yrs
JavaScript 5+ yrs
RxJS 5+ yrs
NGXS state factories
Angular Signals panel migration
Typed Forms every form in the app
Nx module boundaries
SCSS responsive, dark theme
ESLint custom rules
Portfolio of Kirill Levin
This site is not affiliated with Apple Inc. or Microsoft Corporation. All trademarks belong to their respective owners.
© 2026 Kirill Levin
This site is not affiliated with Apple Inc. or Microsoft Corporation. All trademarks belong to their respective owners. © 2026 Kirill Levin
@usertrv · ≈1,050 commits
Describe a form as JSON: conditions, cross-field and async validation, computed values, repeatable groups, wizard steps. The builder makes the same schema by drag and drop and emits the value type in TypeScript.
In the browser
Form engine and visual builder
Form engine and visual builder. Describe a form as JSON: conditions, cross-field and async validation, computed values, repeatable groups, wizard steps. The builder makes the same schema by drag and drop and emits the value type in TypeScript.
From usertrv, the free encyclopedia
| Form engine and visual builder | |
| Developer | Kirill Levin |
|---|---|
| Genre | Form engine and visual builder |
| Platform | web browser |
| Mode | single-player / demo |
| Technologies | Angular 22, Signal Forms, CDK Drag & Drop |
| Repository | userTrv/signal-form-builder |
| Open demo | |
Signal Form Builder is a pet project by Kirill Levin. Form engine and visual builder.
Describe a form as JSON: conditions, cross-field and async validation, computed values, repeatable groups, wizard steps. The builder makes the same schema by drag and drop and emits the value type in TypeScript.
Built with:
The live demo runs right in the browser: /projects/signal-form-builder/
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