jsonyo — JSON Toolkit
Format · validate · query · diff · minify JSON inside wp-admin. Built for REST API responses, ACF exports, theme.json, and webhook payloads.
Use with caution
jsonyo — JSON Toolkit works, but test it on a staging site before relying on it in 2026. Was last updated 5 months ago, and scores 49/100 on our health check.
- Small user base (<10 active installs)
- Very few reviews so far
How does it stack up?
Side-by-side on installs, updates, ratings & support
Daily downloads
Download spikes usually follow a new release — each site that auto-updates counts as a download.
Rankings
Where jsonyo — JSON Toolkit stands todayWordPress.org search rankings
Live position in the plugin search, top 100| Keyword | Position |
|---|---|
| developer-tools | >100 |
| JSON | >100 |
| json formatter | #3 |
| json toolkit | #22 |
| json validator | #19 |
About jsonyo — JSON Toolkit
From the official readme · v1.0.0Description
jsonyo is a lightweight JSON toolkit that lives in wp-admin. Open it from Tools → JSON Toolkit and you get a clean code-editor-style workbench for everything JSON.
It is especially useful when you are working with:
- REST API responses and endpoints
- ACF exports and nested custom field payloads
- theme.json, block editor config, and site settings
- webhook payloads and internal JSON on staging sites
Six modes, one panel:
- Format — paste raw JSON, get a properly indented tree with syntax highlighting
- Validate — instant pass/fail with line + column for syntax errors
- Query — JSONPath ($.users[0].name, items[*].id, recursive ..key) over the parsed tree
- Diff — paste two JSON blocks, see added/removed/changed paths side-by-side
- Stats — counts of objects, arrays, strings, numbers, booleans, nulls + max depth
- Minify — strip whitespace, get one-line output ready to paste
Zero data leaves your browser
Every operation runs entirely in your browser via JavaScript. No external API call, no analytics, no upload. We never see your JSON. This means jsonyo works on private/internal JSON, on disconnected staging sites, on WordPress installs behind firewalls.
Why a wp-admin plugin and not just a website?
If you live in wp-admin (debugging REST API responses, inspecting block editor JSON, working with custom field exports, tracing webhook payloads), having a JSON workbench one click away beats opening a tab to an external tool. Same engine, same Surgical aesthetic, same monospace clarity — but it’s already there when you need it.
Free forever
This plugin has no paid tier, no upsell, no “Pro” upgrade. It’s free, GPLv2, and stays that way. The goal is simple: give WordPress developers a fast, private JSON workbench where they already work.
If you are deciding whether to install, start with the comparison page:
https://voiddo.com/wordpress/jsonyo/compare/
About
Built by vøiddo — a small studio shipping AI-flavoured products, free dev tools, Chrome extensions and weird browser games.
Installation
- Upload the plugin folder to
/wp-content/plugins/or install via Plugins → Add New - Activate through the Plugins menu
- Open Tools → JSON Toolkit in your WP admin
- If you’re evaluating it first, read the compare page above and then install from WordPress.org
That’s it. No config, no API key, no setup wizard.
Frequently asked questions
Does this plugin send my JSON to any server?
No. Everything runs in your browser via JavaScript. The PHP side just renders the admin page shell.
Does it work on multisite?
Yes. Activate per-site or network-wide. Behavior is identical.
Does it work in older PHP?
Requires PHP 7.4+ (matches WordPress 6.0 minimums).
Is the source code open?
Yes — GPLv2 or later.
How do I report a bug or request a feature?
Email support@voiddo.com or open an issue on our GitHub.
Can I compare jsonyo before installing?
Yes. The vøiddo WordPress site includes a side-by-side comparison and install guide at https://voiddo.com/wordpress/jsonyo/compare/ for REST API debugging, ACF payloads, theme.json, and webhook workflows.
Changelog
First release. No upgrade path needed.
1.0.0 — 2026-04-30
- Initial release
- Format / validate / query / diff / stats / minify modes
- Surgical-canon dark theme (mint accent on dark navy)
- Browser-side execution — zero data leaves your browser
- Localizable — Text Domain
jsonyo-json-toolkit
Screenshots
For developers
Is this your plugin? Show off the numbers.
Add a live badge to your site, docs or GitHub README. It updates on its own — no account needed.
Best jsonyo — JSON Toolkit alternatives
All developer-tools plugins →
FAQ
jsonyo — JSON Toolkit: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Oct 4, 2026
Is jsonyo — JSON Toolkit free?
Yes. jsonyo — JSON Toolkit is free to download and use from the official WordPress.org plugin directory.
Is jsonyo — JSON Toolkit safe to use in 2026?
jsonyo — JSON Toolkit works, but test it on a staging site before relying on it in 2026. Was last updated 5 months ago, and scores 49/100 on our health check.
How many websites use jsonyo — JSON Toolkit?
jsonyo — JSON Toolkit is active on <10 WordPress websites and has been downloaded 284 times since it launched in May 2026. It was downloaded 55 times in the last 30 days.
Does jsonyo — JSON Toolkit work with WordPress 7.1?
jsonyo — JSON Toolkit is officially tested up to WordPress 7.0.6, while the latest release is 7.1.2. It may still work, but try it on a staging site first.
What PHP version does jsonyo — JSON Toolkit need?
jsonyo — JSON Toolkit requires PHP 7.4 or higher. Most hosts run PHP 8.x today, so it works on any modern WordPress hosting.
When was jsonyo — JSON Toolkit last updated?
The latest version, 1.0.0, was released on May 20, 2026 (5 months ago).
Who makes jsonyo — JSON Toolkit?
jsonyo — JSON Toolkit is developed and maintained by vøiddo.
What are the best alternatives to jsonyo — JSON Toolkit?
The most popular alternatives to jsonyo — JSON Toolkit are Advanced Post Manager (4K+ installs), Debug Log Viewer (1K+ installs) and Post List Featured Image (900+ installs).
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