DataXForge — free data & transformation tools

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DataXForge

100% free, privacy-first tools for working with data — convert, clean, validate, and visualize, all in your browser.

dataxforge.com

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Workspace
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Cleaning
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Visualization
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✓Private by design

DataXForge does not store, upload, track, or use any information about you or your data. Every tool runs entirely inside your browser tab — nothing ever leaves your machine.

⚡Runs on your device

Because the work happens locally, performance scales with your hardware — more RAM and a faster machine mean larger files and quicker results.

© 2026 DataXForge·Built by Protik Das Utso — WhatsApp +8801883044415

About All tools Categories

Tools·Cleaning

JSON Key Renamer

Rename keys with rules (snake_case, prefix strip, mapping table).

Free · No signup · Runs in your browser

Casing rule

Strip prefix

Strip suffix

Scope

Mapping (one per line: from -> to). Applied after rule/strips.

1

Input JSON64bytes

1 2 3 4 5

Renamed JSON73bytes·3renamed

1 2 3 4 5 6 7 8

{
  "id": 1,
  "name": "Ada",
  "skills": [
    "math",
    "logic"
  ]
}

Renamed 3 keys

_id → id
_name → name
_skills → skills

Runs entirely in your browser. Nothing is uploaded or stored.