Reliable data operations

Generate.
Transform.
Validate.

One focused toolkit for structured data, predictable output and everyday development workflows.

Explore tools Explore API

Deterministic results
Payloads are not stored
Useful without an account

json.validate Live

{
  "user": {
    "id": "u_7f3a9c",
    "active": true,
    "plan": "developer"
  }
}

JSON • UTF-8 ✓ Valid

One platform, four capabilities

A toolkit for every data workflow

Start with a quick browser tool. Move the same predictable operation into your integration when you are ready.

Generate

Build reproducible identifiers, credentials, mock payloads and test datasets.

Transform

Reshape and convert structured data without hidden or lossy changes.

Normalize

Standardize inconsistent fields while preserving assumptions and warnings.

Validate

Find syntax, schema and data-quality issues with exact error locations.

Available now

A growing reliable toolkit

Seven operations are live in API v1: four secure generators and three lossless JSON tools. They share predictable limits and never retain raw payloads by default.

View the full catalog

UUID generator

Generate one or many standards-based identifiers with reproducible options.

data.generate_uuid

Slug generator

Turn names and titles into clean, URL-safe identifiers.

data.generate_slug

API key generator

Create high-entropy development credentials with a clear prefix.

data.generate_api_key

Password generator

Build strong passwords with explicit length and character constraints.

data.generate_password

JSON formatter

Make JSON readable by changing whitespace only.

json.format

JSON minifier

Remove insignificant whitespace without reencoding values.

json.minify

JSON validator

Check syntax, UTF-8 and surrogate pairs with exact byte positions.

json.validate

Built for integration

The same operation, from browser to API

Every operation follows one versioned response envelope, so success, warnings, review states and errors stay predictable.

✓Stable universal response envelope
✓Request ID in body and headers
✓Explicit limits and graceful errors

POST /api/v1/operations/json.format

curl https://nrvo.app/api/v1/operations/json.format \
  -H 'Content-Type: application/json' \
  -d '{"input":"{\"ready\":true}"}'

Generate.Transform.Validate.