KalpLabs

All QA & Dev Utilities in One Place

Instant tools for automation engineers and developers — JSON, APIs, strings, encoding, testing helpers and more. No setup required.

JSON FormatterValid
{
  "endpoint": "/api/tests",
  "status": "ok",
  "durationMs": 243,
  "metadata": {
    "suite": "smoke",
    "owner": "qa-team"
  }
}
POST/api/tests/run

Value for QA & Dev Teams

Practical utilities that stay out of the way and speed up everyday work.

Instant Browser Tools

No installs, no setup

Built for QA & Dev

Real-world testing utilities

Fast & Lightweight

Optimized for speed

Secure by Design

Data not stored

Featured Tools

Jump directly into the most used utilities.

JSON Formatter & Validator

Format and validate JSON instantly.

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JSON Diff Viewer

Compare payloads and highlight changes.

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API Request Builder

Craft and debug HTTP requests quickly.

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String Escape / Unescape

Transform strings for QA workflows.

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Regex Tester

Validate patterns and matches in real time.

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Timestamp Converter

Convert time formats without guesswork.

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Test Data Generator

Create realistic QA datasets fast.

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JWT Decoder

Inspect JWT headers and payloads.

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Universal Converter

Convert JSON, XML, YAML, CSV, and more.

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XML Formatter & Diff

Format and compare XML payloads.

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Curl Converter

Turn curl into Fetch or Axios snippets.

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.env Utility

Validate and mask environment files.

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Git Helper

Generate common Git workflows fast.

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Assertion Generator

Create assertions from JSON responses.

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How It Works

Three simple steps to get results.

01
Choose a utility

Pick a tool from the Toolbox catalog.

02
Paste or enter input

Drop in JSON, text, or API details.

03
Get instant output

Copy results in seconds.

Categories

Browse by focus area to find the right utility.

Have a feature idea or found an issue?

Help shape KalpLabs with quick feedback from the tools you use every day.

Submit Feedback / Feature Request