WooCommerce has no built-in way to notify a customer when an out-of-stock product comes back. This post compares four real plugins that add a back in stock notification form to your product pages: Back In Stock Notifier for WooCommerce, Waitlist for WooCommerce, YITH WooCommerce Waiting List, and Notifima. Short version: Back In Stock Notifier handles the largest subscriber lists without breaking a sweat and costs nothing to start, Waitlist for WooCommerce is the simplest free option if you also want to see demand by quantity, YITH fits best if you already run other YITH plugins, and Notifima doubles as a light stock manager. It’s part of the same series as our WooCommerce quick view plugin comparison and WooCommerce vacation mode plugin comparison: narrow features that most plugin roundups skip past.
| Plugin | Best for | Price | Last updated |
|---|---|---|---|
| Back In Stock Notifier for WooCommerce | Large subscriber lists, zero setup | Free, add-ons from $19 one-time | September 3, 2026 |
| Waitlist for WooCommerce | Tracking demand by quantity, free | Free | August 19, 2026 |
| YITH WooCommerce Waiting List | Stores already on YITH plugins | Free, Premium $89.99/year | September 2, 2026 |
| Notifima | Waitlist plus basic stock management | Free, Pro from $49/year | September 1, 2026 |
Back In Stock Notifier for WooCommerce
Back In Stock Notifier for WooCommerce puts an email subscription form on every out-of-stock product automatically, with no setup step required after activation.
- Price: Free, add-ons from $19 one-time
- Requires: WordPress 4.7+, PHP 7.4+
- Last updated: September 3, 2026
What sets this one apart is how it handles scale. Restock emails go out through a background job engine instead of firing in a loop on page load, so a product with 10,000 subscribers still gets emailed reliably instead of timing out the server. It also has a feature most competitors skip entirely: Fair Sending. If a product restocks with only 20 units but 200 people are on the waitlist, it notifies the first 20 subscribers and leaves the rest queued for the next restock, instead of blasting everyone and triggering a rush of failed checkouts.
Setup is genuinely just install and activate. Emails route through WooCommerce’s own email system, so templates match your store’s branding without extra configuration, and you can edit subject lines with placeholders like {product_name} and {cart_link} under WooCommerce > Settings > Emails. It supports simple, variable, grouped, and subscription products out of the box.
The catch is the free version covers the core loop and not much else. Unsubscribe links, double opt-in, spam-domain blocking, and CRM syncing (Mailchimp, Klaviyo, ActiveCampaign) all live behind separate $19 add-ons, sold individually or bundled from $49. For a store that only needs GDPR-compliant unsubscribing, that’s a one-time $19, not a subscription, but it does mean the real cost of a fully compliant setup is higher than the “free” label suggests.
Waitlist for WooCommerce
Waitlist for WooCommerce by Xootix is a free plugin built around tracking interest, not just sending an email when stock returns.
- Price: Free
- Requires: WordPress 3.0.1+, PHP minimum not specified
- Last updated: August 19, 2026
The differentiator here is control over when the waitlist button even shows up. You can set it to appear only for out-of-stock products, only for backorder products, or on specific products regardless of stock status, which matters if you want to gauge pre-launch demand rather than just cover restocks. It also logs guest and registered-user signups separately and tracks how many units of interest a product has accumulated, giving you a rough read on demand before you reorder.
Setup takes three steps: upload, activate, then open the new Waitlist menu that appears in the dashboard to configure form text and which stock statuses trigger the button. There’s a shortcode if you want the form somewhere other than the default product page position, and two ready-made layouts (popup and inline).
Read the plugin’s own feature list closely and there’s a real gap: automatic back-in-stock emails triggered by a stock status change are listed under the separate “Email Booster” add-on, not the core plugin. The core plugin logs and notifies, but the fully automatic restock-to-email pipeline that Back In Stock Notifier and Notifima give you for free sits behind that add-on here, and Xootix doesn’t publish a price for it on the plugin’s WordPress.org listing.
YITH WooCommerce Waiting List
YITH WooCommerce Waiting List is the waitlist entry in YITH’s large catalog of WooCommerce extensions, and it’s the most polished of the four if you’re already using other YITH plugins on the same store.
- Price: Free, Premium $89.99/year (single site)
- Requires: WordPress 6.8+, PHP 7.4+
- Last updated: September 2, 2026
The free version is more complete out of the gate than it first looks: it already includes per-variation waitlists (so a shopper can wait on one shoe size without subscribing to the whole product), a “My WaitLists” tab in the customer’s My Account page, and a manual send-restock-email action from the product editor’s meta box. That customer-facing account tab is the one thing none of the other three free tiers include.
Installation follows the standard YITH pattern: download the zip from your YITH account or WordPress.org, upload it under Plugins, and activate. Once active, waitlist settings sit under YITH’s own admin menu alongside any other YITH plugins you run, which is the actual appeal of staying in this ecosystem: one settings area, one billing relationship, one update cycle, instead of five separate vendors.
Automatic restock emails, reCAPTCHA spam protection, and admin new-subscriber notifications, all free by default in at least one competitor here, are Premium-only in YITH’s version. At $89.99/year for a single site, that’s a real ongoing cost if all you need is the automated email, and it also carries the highest WordPress minimum version of the four (6.8+), so it won’t install at all on an older, unpatched site.
Notifima
Notifima pairs a back-in-stock waitlist with a lightweight stock manager, so the same plugin covers both the customer-facing notification and a chunk of admin-side inventory oversight.
- Price: Free, Pro from $49/year
- Requires: WordPress 6.4.0+, PHP 8.0+
- Last updated: September 1, 2026
The free tier already automates restock emails, blocks duplicate signups on the same product, sends the store admin a notification whenever someone joins a waitlist, and lets you export full stock data through WordPress’s own Tools > Export screen. That last piece is the differentiator: it’s the only one of the four that gives you a shop-wide stock export without paying for it, which matters more the larger your catalog gets (see our notes on syncing a large WooCommerce catalog if stock data is already a pain point).
Setup is the standard WordPress.org flow: search “Notifima” under Plugins > Add New, install, activate. From there a Notifima menu handles both the waitlist form settings and the stock overview table. The shortcode [notifima_subscription_form] lets you place the signup form outside the default product-page position if a theme needs it elsewhere.
Where it charges you is compliance and CRM features: unsubscribe management, double opt-in, spam-domain blocking, reCAPTCHA, and Mailchimp sync are all Pro-only, same pattern as the other three. The bigger practical issue is the PHP 8.0 minimum, the highest of any plugin in this comparison. A meaningful share of budget WooCommerce hosting still runs PHP 7.4 or 8.1 as the default, so check your host’s PHP version before installing this one specifically.
How to pick
- If you expect a large subscriber list on popular products and want automatic emails free from day one, use Back In Stock Notifier for WooCommerce.
- If you want to gauge demand before a product is even out of stock, and you don’t want to pay anything, use Waitlist for WooCommerce, but budget for the Email Booster add-on if you need fully automatic restock emails.
- If you already run other YITH plugins and value one consistent admin experience over the cheapest option, use YITH WooCommerce Waiting List.
- If you want a shop-wide stock export and basic inventory oversight bundled with the waitlist, use Notifima, and confirm your host runs PHP 8.0 or newer first.
None of these plugins need custom development to run, but if your store needs something none of them cover out of the box, like syncing restock alerts into a private CRM or a non-standard ERP, our Plugin Development team builds that directly rather than stitching together three add-ons to get there. If you’re still shaping the rest of the store around it, our WooCommerce Development team handles that too.
FAQ
Does WooCommerce have a built-in back in stock notification feature?
No. Core WooCommerce only shows an “Out of stock” label on the product page. Notifying customers when stock returns requires one of the plugins above or a custom build.
Can I send back in stock alerts by SMS instead of email?
Yes, but only with an add-on. Back In Stock Notifier for WooCommerce sells a Twilio SMS add-on separately; none of the other three plugins in this comparison offer SMS notifications.
Do these plugins work with variable products like sizes and colors?
Yes. All four support variation-level subscriptions, so a customer can wait on a specific size or color rather than the whole product.
Do I need a GDPR-compliant opt-in for a back in stock waitlist?
It depends on where your customers are. YITH WooCommerce Waiting List includes a Privacy Policy checkbox in its free version, Notifima and Back In Stock Notifier for WooCommerce require their paid double opt-in add-ons for a confirmed-consent flow, and Waitlist for WooCommerce doesn’t publish a built-in consent option in its free tier.
