Smart Custom Fields vs ACF Pro JSON Sync (2026)

Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.

Smart Custom Fields

Smart Custom Fields

4.9(20)

50K+ active installs

Free

Updated 2 weeks ago
View Smart Custom Fields
VS
ACF Pro JSON Sync

ACF Pro JSON Sync

0(0)

60 active installs

Free

Updated 11 years ago
View ACF Pro JSON Sync

Quick Verdict

As of April 2026, Smart Custom Fields has a higher user rating (4.9/5 from 20 reviews) and leads in active installations (50K+ vs 60). Both are free WordPress plugins. Smart Custom Fields has accumulated 346K+ total downloads while ACF Pro JSON Sync has 4.5K+.

Detailed Comparison

Rating
4.9/5Smart Custom Fields
ACF Pro JSON SyncN/A
Total Reviews
20Smart Custom Fields
ACF Pro JSON Sync0
Active Installs
50K+Smart Custom Fields
ACF Pro JSON Sync60
Total Downloads
346K+Smart Custom Fields
ACF Pro JSON Sync4.5K+
Support Resolution
N/ASmart Custom Fields
ACF Pro JSON SyncN/A
Last Updated
2 weeks agoSmart Custom Fields
ACF Pro JSON Sync11 years ago
First Released
2014Smart Custom Fields
ACF Pro JSON Sync2015
Age
12 yearsSmart Custom Fields
ACF Pro JSON Sync11 years
WP Requires
6.4+Smart Custom Fields
ACF Pro JSON Sync3.5.0+
PHP Requires
7.4+Smart Custom Fields
ACF Pro JSON Syncfalse+
Business Model
FreeSmart Custom Fields
ACF Pro JSON SyncFree
Latest Version
5.0.7Smart Custom Fields
ACF Pro JSON Sync1.0.1

Rating Breakdown

Smart Custom Fields

4.9/5(20 reviews)
5
95%
4
0%
3
5%
2
0%
1
0%

ACF Pro JSON Sync

0/5(0 reviews)
5
0%
4
0%
3
0%
2
0%
1
0%

Recent Reviews

Smart Custom Fields Reviews

by tommynguyen0710

very simple and great

very simple and great

by jkaki

Great simple product but needs update

This is a great, simple product, but it hasn’t been updated for four months. At this time it has a critical vulnerability and needs to be updated.

by xforeal

image

How can we display image field, like ACF: <?php $image = get_field(‘hero_image’); ?> ” alt=”<?php echo $image[‘alt’]; ?>” /> SCF: <?php echo SCF::get(‘img’)[0]; ?> isn’t work.

ACF Pro JSON Sync Reviews

No reviews yet

Frequently Asked Questions

Is Smart Custom Fields or ACF Pro JSON Sync more popular?
Smart Custom Fields has 50K+ active installations while ACF Pro JSON Sync has 60. Smart Custom Fields is the more widely-used plugin as of April 2026.
Which has better ratings — Smart Custom Fields or ACF Pro JSON Sync?
Smart Custom Fields has a 4.9/5 rating from 20 reviews, while ACF Pro JSON Sync has a 0/5 rating from 0 reviews.
Are Smart Custom Fields and ACF Pro JSON Sync free?
Smart Custom Fields is free and ACF Pro JSON Sync is free. Both can be downloaded from the WordPress.org plugin directory.
Which plugin has better support — Smart Custom Fields or ACF Pro JSON Sync?
Support resolution data is not available for all plugins. Check each plugin's WordPress.org support forum for current response quality.
Which plugin is updated more frequently?
Smart Custom Fields was last updated 2 weeks ago and ACF Pro JSON Sync was last updated 11 years ago.

Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.