No rating: The only record that would rate inboxkitten.com is a change we could not check against an archived copy of inboxkitten.com's page, so we are not publishing a rating for it. It is listed below, marked. We withhold a rating because of what our own evidence does not show, so it stays withheld until a source, a retraction or a corrected record clears it. It does not expire on a clock. Full history ↓
Limits, pricing history. Catalogue date October 2026. Last updated 2026-10-04.
inboxkitten.com's free tier offers Inboxkitten is a free, open-source disposable email service… The only record that would rate inboxkitten.com is a change we could not check against an archived copy of inboxkitten.com's page, so we are not publishing a rating for it.
⚠️ Pricing change: A free tier still exists, the details have changed. Have their own free tiers but incur costs if limits are exceeded. The auto-delete time is stated as 'several hours' but also 'officially 3 days according to mailgun'. The emphasis on self-hosting and external service costs introduces a new element. Unconfirmed. We could not check this change against an archived copy of inboxkitten.com's page, so it does not count toward the rating.Source ↗ (discovered 2026-09-10 · effective date unknown)View in changelog →
The day we last read the vendor's page. The terms above come from our read of 2026-09-10, and we have read the page since, on 2026-10-04, without confirming them. We hold no confirmation of the terms we publish.
Free Tier Details
Inboxkitten is a free, open-source disposable email service. Self-hosting is available for $0/month, but requires Firebase and Mailgun accounts (which have their own free tiers). Emails auto-delete after several hours (officially 3 days according to mailgun).
We read that on 2026-10-04 from https://inboxkitten.com/, and our check recorded: the page names inboxkitten.com as "inboxkitten com" and states "$0".
When You'll Outgrow inboxkitten.com's Free Tier
When your usage exceeds the free tier limits, you'll need to upgrade.
A free tier still exists, the details have changed. Have their own free tiers but incur costs if limits are exceeded. The auto-delete time is stated as 'several hours' but also 'officially 3 days according to mailgun'. The emphasis on self-hosting and external service costs introduces a new element. Unconfirmed. We could not check this change against an archived copy of inboxkitten.com's page, so it does not count toward the rating.Source ↗
Before: Free temporary/disposable email inbox, with up to 3-day email auto-deletes. Open source and can be self-hosted.
After: Inboxkitten is a free, open-source disposable email service. Self-hosting is available for $0/month, but requires Firebase and Mailgun accounts (which have their own free tiers). Emails auto-delete after several hours (officially 3 days according to mailgun).
We do not push notifications. Every change we record is readable the moment it lands, and the JSON answer carries an ETag — send it back as If-None-Match and an unchanged answer costs one 304.
Yes, inboxkitten.com offers a free tier: Free. Inboxkitten is a free, open-source disposable email service. Self-hosting is available for $0/month, but requires Firebase and Mailgun accounts (which have their own free tiers). Emails auto-delete af...
What is inboxkitten.com's free tier?
inboxkitten.com's free tier is called "Free". Inboxkitten is a free, open-source disposable email service. Self-hosting is available for $0/month, but requires Firebase and Mailgun accounts (which have their own free tiers). Emails auto-delete after several hours (officially 3 days according to mailgun).
Is inboxkitten.com's free tier reliable?
The only record that would rate inboxkitten.com is a change we could not check against an archived copy of inboxkitten.com's page, so we are not publishing a rating for it.
Is inboxkitten.com's free tier good for production?
inboxkitten.com's free tier is usable for prototyping and development. The only record that would rate inboxkitten.com is a change we could not check against an archived copy of inboxkitten.com's page, so we are not publishing a rating for it.
What changed in inboxkitten.com's pricing?
inboxkitten.com has had 1 recorded pricing change. Most recently: A free tier still exists, the details have changed. Have their own free tiers but incur costs if limits are exceeded. The auto-delete time is stated as 'several hours' but also 'officially 3 days according to mailgun'. The emphasis on self-hosting and external service costs introduces a new element. Unconfirmed. We could not check this change against an archived copy of inboxkitten.com's page, so it does not count toward the rating. Source: https://inboxkitten.com/ (discovered 2026-09-10).
When will I outgrow inboxkitten.com's free tier?
When your usage exceeds the free tier limits, you'll need to upgrade. When you outgrow the free tier, evaluate paid plans against alternatives — sometimes a competitor's free tier covers what you need.
What category is inboxkitten.com in?
inboxkitten.com is categorized under Email on AgentDeals.