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. Verified October 2026. Last updated 2026-10-29.
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, and the day we last confirmed 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 2026-10-29 from https://inboxkitten.com/, and our check recorded: the page names inboxkitten.com as "inboxkitten com" and states "$0".
From inboxkitten.com, read 2026-10-29:
$0 (*per month) All you need to do is the following steps git clone "https://github.com/uilicious/inboxkitten.git" cd inboxkitten ./config.sh ./build.sh firebase login ./deploy/firebase/deploy.sh *You will need to have signed up to firebase and mailgun, where you can deploy on their "free" tier.
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.