Paste your API key, pick a domain, compose, send.
Simple. Trustworthy. Open source.
Open EditorWe just proxy your calls to Resend. Your API key stays with you.
Paste email headers to instantly link replies to existing Gmail/Outlook threads.
No accounts. No database. No tracking. Email bodies are never persisted.
Audit the code. Self-host it. Deploy to Railway, Vercel, or anywhere.
Paste Your API Key
Get your Resend API key from resend.com/api-keys. We use it only for this session.
Load Verified Domains
Click "Load Domains" to fetch your verified senders. Or type manually.
Compose & Send
Fill To, Subject, and compose your email. Click Send. Done.
Your API Key is Safe
Your key is used only in your browser. It's sent directly to Resend's API in the Authorization header and never stored, logged, or persisted anywhere.
Your Email Content is Never Stored
There is no database. Email bodies are forwarded to Resend and discarded immediately after sending. No history. No tracking.
Stateless Proxy Design
Resend Pad is just a thin proxy: it receives your request, adds your API key, forwards to Resend, returns the response. Nothing stored in between.
Open Source
Audit the code on GitHub. Run it yourself if you prefer.
Yes. Resend Pad is completely free. (Resend charges for emails sent, but that's independent of Resend Pad.)
No. Just paste your Resend API key and start sending. No signup, no email, no accounts.
Yes, but you're responsible for domain setup (SPF/DKIM) and compliance with anti-spam policies. Best used for testing and one-off sends.
Yes. Use the "Connect Thread" feature to paste headers from Gmail (Show original). Resend Pad will auto-detect the Message-ID and link your reply to the conversation.
Yes. It's a single Node.js proxy + HTML file. Deploy to Railway, Vercel, or your own server in minutes.
You need a "Full Access" or "Sending" key that can list domains. "Sending Only" keys are limited. Get one at resend.com/api-keys.
Verify your domain in Resend (add SPF/DKIM records), get an API key, paste it into Resend Pad, select your domain, and send. No coding required.
Yes. Your key stays in your browser, sent directly to Resend in the Authorization header only. Never stored, logged, or persisted.
Yes. It's a single Node.js proxy + HTML file. Deploy to Railway, Vercel, or your own server.
Get your Resend API key, paste it, select your domain, and send. No setup. No waiting.
Free forever. No credit card required.
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Resend Pad is not affiliated with or endorsed by Resend, Inc.