Functional JSON viewer

Name: Functional JSON viewer
Rating: 5 (3 reviews)
Author: Dmytro

Modern JSON formatter and explorer.

As of May 2026, Functional JSON viewer has 217 users and a 5.00/5 rating from 3 reviews in the Developer Tools category.

Dmytro Developer Tools

Chrome Web Store ↗.crx

Users+17.9%

217

Rating0%

5.00

3 reviews

Reviews0%

Version

0.0.12

Manifest V3

History

3 snapshots

Tracking since Apr 1, 2026.

View as table

Date	Users	Rating	Reviews	Version
Apr 1, 2026	184	5.00	3	0.0.12
Apr 30, 2026	185	5.00	3	0.0.12
May 27, 2026	180	5.00	3	0.0.12
Now	217	5.00	3	0.0.12

Permissions & access

Permissions: storagecontextMenusclipboardWrite
Host access: *://*/*, <all_urls>

Screenshots

About

Why to use:

- Foldable & filterable & focusable nodes
- (Shift-)Tab navigation
- Show node path on focus & hover
- Keymaps (Vim inspired)
- Clickable links
- Light & dark theme
- Converting JSON
- Screenshot (JSON to image .jpeg)

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Functionality:

- Filter nodes  (text or RegExp)
- Collapse all nodes
- Expand all nodes
- Save JSON
- Copy JSON
- Copy node
- Copy node path
- Switch formatted & raw data
- Sticky panels

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Convert JSON to:

- JSON schema
- Typescript interfaces (.d.ts)
- Golang structs (.go)

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Keymaps:

h | ArrowLeft - move focus left (parent node)
j | ArrowDown - move focus down (next sibling)
k | ArrowUp - move focus up (previous sibling)
l | ArrowRight - move focus right (child node)
c - collapse all child nodes
e - expand all child nodes
y - copy node
p - copy node path

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Tips:

On large file, better search:
1. Click collapse all
2. Use native browser search (Ctrl+f)
3. Browser will auto expand matched nodes

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Code:
https://github.com/diogenesofweb/fjv