They share the core posture: WordPress-native plugins that produce per-post OG images on save, with the data and templates living inside wp-admin rather than in an external service. The differences are about depth. SleekPixel ships a fuller visual editor, broader custom-field bindings, format-specific variants for multiple social networks, per-post-type templates, and a whole-archive bulk regenerate. For sites whose needs sit inside the entry-level shape, OMGIMG is a reasonable pick; for sites that have outgrown that shape, SleekPixel takes over without changing the WordPress-native posture.

Yes. The recommended order is to install SleekPixel, design the templates, run the bulk regenerate to fill the media library, then deactivate OMGIMG once SleekPixel is emitting the OG and Twitter meta tags. The overlap keeps the social previews valid throughout, and the cutover is a single step once the new attachments are in place.

A visual editor inside wp-admin with a canvas, a layer panel, and a field picker. Text, image, and shape layers can be added, positioned, and styled freely. Each layer can bind to a post field, custom field, or taxonomy term, and a live preview shows the render against a real post as the template is built.

ACF, Meta Box, and Pods are covered natively through the field picker, alongside core WordPress fields and taxonomies. Other custom-field plugins typically work via post meta, and the documentation covers the supported integrations and the standard meta-fallback pattern for anything not on the first-class list.

Yes. Each post type can be assigned its own template, with field-level overrides where useful. A blog post can render with author and category, a product with price and rating, a course with duration and instructor, all from the same plugin install with no code required.

A single template can output multiple format-specific variants for Open Graph, Twitter, Instagram, and Pinterest at the correct dimensions per platform. The renderer produces one attachment per variant, and the matching meta tag points at the right size for each network.

SleekPixel renders locally on the WordPress server, so bulk regenerate has no per-image fee. Whole-archive sweeps run in the background after a template change and only cost the server resources to process the renders. Iteration on the design stays cheap, which is the practical difference on large archives.

In the WordPress media library as real attachments, on whatever storage the site already uses. There is no SleekPixel cloud, no external URL dependency, and the social preview keeps working regardless of any third-party service status. If a CDN fronts the media library, SleekPixel's attachments go through it like any other upload.