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Fieldstone – Custom Fields, Post Types & Custom Table Storage

Name: Fieldstone – Custom Fields, Post Types & Custom Table Storage
Author: fieldstonewp

Custom fields, post types and taxonomies stored in fast indexed tables. 24 field types, front-end forms, and one-click import from ACF.

Fieldstone ranks #64,414 among WordPress.org plugins with 0+ active installations, is #1,325 of 1,454 in the Taxonomy category, and was last updated Oct 9, 2026. Data from WordPress.org, refreshed twice daily — see methodology.

Compatible with WP 7.1.4

v1.4.0 Current Version v1.4.0

Updated 3 weeks ago Last Update on 09 Oct, 2026

Refreshed 2 days ago Last Refreshed on

#1,325 of 1,454 in Taxonomy Actively maintained

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Rank

#64,414

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Active Installs

-100%

KW Avg Position

N/A

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Downloads

548

+2 today

Support Resolved

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Rating

Review 0 out of 5

0 (0 reviews)

Next Milestone 10

Total Progress 10%

0+ 10+

36,846

Ranks to Climb

Growth Needed

8,000,000

Active Installs

Pro

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Current #64,414

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Active Installs 0,000,000+

Growth +0.0%

Peak 0,000,000

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Plugin Details

Version: 1.4.0
Last Updated: Oct 09, 2026
Requires WP: 6.4+
Tested Up To: 7.1.4
PHP Version: 8.0 or higher
Author: fieldstonewp

Support & Rating

Rating: ☆ ☆ ☆ ☆ ☆ 0
Reviews: 0
Support Threads: 0
Resolved: 0%

Keywords

custom fields custom post types custom table field group taxonomies

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Frequently Asked Questions

Common questions about Fieldstone – Custom Fields, Post Types & Custom Table Storage

Use fstn_the_field( 'field_name' ) for escaped plain text, or $value = fstn_get_field( 'field_name' ) when you need the raw formatted value (arrays for checkboxes, WP_Post for post links, and so on). See the Displaying each field type section in the Description for a complete example per field type.

Yes. Complete documentation for both the free plugin and Fieldstone Pro — covering every field type (how to add and configure it, what it stores, and how to display it in a theme), the template-function reference, Pro loop and relationship guides, and advanced topics — is at https://fieldstonewp.com/docs/.

The AI features are optional and off by default. They use your own Anthropic API key (pay-as-you-go with Anthropic, typically a few cents per request) and send only the description you type, or — when asking for missing fields — the title and field list of the group you are editing. The request goes directly to api.anthropic.com, never through any Fieldstone server, and your posts and field values are never sent. Tip: create a dedicated API key with a monthly spend limit. See the "External services" section for details.

Yes. With ACF active, an import banner appears on the Fieldstone field-groups screen listing your ACF groups. Importing recreates a group as a Fieldstone definition and creates its storage table; anything that has no equivalent in the free build is reported as a warning rather than silently dropped. Your ACF groups and their data are left exactly as they were, so you can run both while you check the result. Importing brings the field definitions. To bring the values across, press Copy values from ACF in the panel that appears on the same screen. It reads ACF's data without changing it, keeps anything Fieldstone already holds, and can be run again safely.

Field values live in dedicated tables (one per field group, one row per post). By default every value is also mirrored into postmeta so other plugins can see it. Turning the mirror off is possible in Settings, but it will hide Fieldstone data from plugins that read postmeta.

No. By default all data is kept. There is an explicit opt-in setting ("Remove all data on uninstall") if you want a full cleanup.

Yes. Create a fieldstone-json folder inside your uploads directory (wp-content/uploads/fieldstone-json) and every save writes the definition there as JSON (the folder is protected from direct web access). Definitions in that folder load with priority and can be synced with wp fstn json sync.

Fieldstone works on individual sites in a multisite network. There is no network-level UI yet.

Yes. Fieldstone Pro adds the advanced field types — Repeater, Flexible Content, Group, relational fields (Post Object, Relationship, User, Taxonomy), Gallery, Clone, Options pages, block bindings and more — all with the same custom-table storage, plus automatic updates and support. The free plugin is fully functional without it. See the "Free vs Pro" section above, or plans and pricing at https://fieldstonewp.com/pricing/.

Yes. A postmeta mirror is on by default, so every value is also written to wp_postmeta where the rest of the WordPress ecosystem expects it — SEO variables, backups, exports and search plugins keep working. If you ever need to rebuild the mirror in either direction, use Fieldstone → Tools or wp fstn mirror rebuild.