Alljson icon
Alljson icon

Alljson

AllJSON is a free, fast, browser-based tool for working with JSON. It validates messy JSON, lets you explore it as an interactive tree, and turns clicked fields into BigQuery / Snowflake-style SQL — all without sending data anywhere.

Alljson screenshot 1

Cost / License

  • Free
  • Proprietary

Application type

Platforms

  • Online
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Features

  1.  No registration required
  2.  JSON Pretty Print

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Alljson News & Activities

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Recent activities

  • shriram93 added Alljson as alternative to Grayslate
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    nilutpal added Alljson as alternative to JSON OS
  • protmaks updated Alljson
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    DataLensia added Alljson as alternative to DataLensia
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    K0RR added Alljson as alternative to json-log-viewer
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    K0RR added Alljson as alternative to jless
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    dev7732 added Alljson as alternative to GeeksPrep Tools
  • Guest reviewed Alljson  

    I like Alljson because it’s fast and easy to use for viewing and validating JSON data online. The site offers useful features like formatting and editing, and it works well for quick checks or debugging. Great free alternative for JSON tools!

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Our users have written 1 comments and reviews about Alljson, and it has gotten 1 likes

Alljson was added to AlternativeTo by Maksim Pachkouski on and this page was last updated .

Comments and Reviews

   
Guest
0

I like Alljson because it’s fast and easy to use for viewing and validating JSON data online. The site offers useful features like formatting and editing, and it works well for quick checks or debugging. Great free alternative for JSON tools!

Review from a new or low-activity account — shown here, but not counted in the app rating.

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What is Alljson?

AllJSON is a free, fast, browser-based tool for working with JSON. It validates messy JSON, lets you explore it as an interactive tree, and turns clicked fields into BigQuery / Snowflake-style SQL — all without sending data anywhere.

What it does Validate JSON, including a lenient parser (unquoted keys, trailing commas, single quotes). Auto-format and pretty-print JSON. Explore data as a collapsible tree with key filtering. Click a field to copy its dot-notation path; tick checkboxes in Select mode to build a SELECT statement. Auto-flatten an entire JSON document into SQL columns — updates instantly as you type. Generate BigQuery / Snowflake style expressions, including [OFFSET(i)] for arrays. Privacy Everything runs locally in your browser. Your JSON never leaves your device — there is no backend, no upload, no tracking of input data.

Who it's for Data engineers, analysts, and developers who deal with deeply nested JSON payloads from APIs, event logs, or warehouses, and need to quickly turn them into queryable SQL.