Install it, click start, and walk away. ReThumbify rebuilds all your image sizes in the background — your site stays up, you keep working.
What WordPress developers are saying
"I had 8,000 images to regenerate after switching themes. ReThumbify ran overnight without touching my site's performance. Woke up to a fully done library."
Marcus R.
WooCommerce store owner
"The pause and resume feature alone is worth it. I manage 12 client sites, being able to stop mid-job and pick it back up later is a game changer."
Sophie L.
WordPress agency developer
"Finally a plugin that doesn't time out on large libraries. Processed 15,000 images for a photography client without a single error. Absolutely worth the price."
James K.
Freelance WordPress developer
Features
Start a regeneration job and close the tab. ReThumbify keeps going in the background — your site stays fast and you don't have to wait.
Need to stop mid-way? Just pause. Come back an hour or a day later and it continues from exactly where it stopped — nothing lost.
Don't want to redo everything? Filter by upload date, post type, or image size. Only the images you pick get processed — saves time on large sites.
Every time you change themes or image settings, WordPress creates new sizes but leaves the old ones behind. This tool finds and deletes them so they stop taking up space.
Pricing
Buy once and use it on your site for as long as you want. No renewals, no subscriptions.
Free
$0
Forever free
No credit card · always free
Single Site
$79
Save $20Regular $99 · One-time
30-day money-back guarantee
Unlimited Sites
Best Value$199
Save $100Regular $299 · One-time
30-day money-back guarantee
Prices in USD. Local taxes or VAT may apply.
Sound familiar?
That's exactly what ReThumbify fixes. It rebuilds all your image sizes to match your current theme — without slowing your site down.
Why pay for it?
Free tools time out, block your site, and make you start over. Here's what's different with Pro.
✓ Your site stays up while it works
Free tools run in your browser tab. If you close it or your connection drops, the job stops.
✓ Progress is saved automatically
Free tools make you start from zero if anything interrupts the job.
✓ Filter by date, post type, or size
Free tools rebuild everything every time — even images that don't need it.
✓ Email and chat support included
Free tools point you to a forum thread from 2019 and hope for the best.
✓ No subscription, no renewal fees
Some paid tools charge you every year. ReThumbify is a one-time purchase — buy it once and it's yours.
✓ Updated regularly
Free tools often stop getting updates. When WordPress changes, they break — and nobody fixes them.
When you change your WordPress theme or update image settings, your existing images don't automatically get resized to the new dimensions. ReThumbify rebuilds all those image sizes for you — without slowing your site down or making you sit and wait.
We accept all major credit cards (Visa, Mastercard, Amex) and PayPal. You'll see the available options at checkout.
The free version lets you rebuild all your image sizes and pause/resume the job. Pro adds the ability to run jobs in the background (so you don't have to keep the tab open), rebuild only specific images, and get direct support from us.
Single covers one WordPress site. Unlimited covers as many sites as you want — same price, no per-site fees. Both plans include all the same features.
Yes. After you buy, you'll get a confirmation email from Paddle (our payment processor) with a link to download your invoice.
Tax is calculated automatically at checkout based on your country. If you have a VAT number, you can enter it during checkout to have it applied.
Reach us at support@rethumbify.com — we typically respond within 24 hours.
No problem. Email us at support@rethumbify.com within 30 days and we'll give you a full refund — no questions asked.
Stay in the loop
Drop your email and we'll let you know about updates and new releases.