See Every Email,
Every Detail
Preview rendered HTML, inspect headers, view raw source, download attachments, and share emails with your team. Everything you need to debug emails before they reach real users.
Start Free — No credit cardPixel-perfect HTML rendering
Every captured email is rendered exactly as your recipients would see it. SendPit displays your HTML emails in a secure, sandboxed iframe that faithfully reproduces the final output, complete with inline styles, embedded images, and responsive layouts.
Catch broken layouts, missing images, and rendering quirks before they ever reach a real inbox. Test how your emails look across different viewport widths without switching between devices or email clients.
- Sandboxed iframe prevents CSS and JavaScript leakage
- Responsive layout testing at any viewport width
- Inline styles, web fonts, and embedded images rendered faithfully
MIME-Version: 1.0
Content-Type: multipart/alternative;
boundary="----=_Part_123_456"
From: [email protected]
Subject: Reset your password
------=_Part_123_456
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable
<!DOCTYPE html>
<html>...
See what email clients actually receive
Sometimes the rendered HTML looks fine, but the underlying source tells a different story. SendPit gives you the complete, unmodified raw email source including every MIME boundary, encoding declaration, and content part.
Debug multipart messages, verify Content-Transfer-Encoding settings, check MIME structure, and ensure your email libraries are generating well-formed messages. This is the view your email server sees, not the sanitized version a client shows you.
- Full MIME structure with boundaries and parts
- Encoding verification for quoted-printable and base64 content
- Syntax-highlighted source for easy reading
Every header, parsed and readable
Email headers carry critical metadata that determines how your message is processed, displayed, and threaded by receiving clients. SendPit parses and displays every header in a clean, structured format so you can verify the details that matter.
Check From and Reply-To addresses, verify Subject lines and Date timestamps, confirm Message-ID uniqueness, and inspect Content-Type and MIME-Version declarations. Spot misconfigured headers before they cause threading issues, spam classification, or display problems in your recipients' email clients.
- From, To, CC, BCC, Reply-To, and Subject at a glance
- Message-ID, Date, and Content-Type verification
- Custom headers and X-headers displayed clearly
invoice-2026-03.pdf
245 KB
company-logo.png
18 KB
export-data.csv
1.2 MB
Attachments, fully accessible
Emails with attachments need extra verification. Is the PDF actually attached? Is it the right file? Is the file size reasonable? SendPit lists every attachment with its filename, MIME type, and size, and lets you download each one individually.
Preview supported file types directly in the browser, including images and PDFs, without downloading them first. Verify that your application is correctly encoding and attaching files, so your invoices, reports, and documents always arrive intact.
- Download individual attachments with one click
- In-browser preview for images and supported file types
- File size, MIME type, and encoding details shown per attachment
Share emails without sharing credentials
Need a designer to review an email template? A product manager to approve copy? A client to sign off on a transactional flow? Generate a shareable link and send it to anyone. No SendPit account required to view.
Time-limited links
Shared links auto-expire after a configurable period. Whether it is 24 hours or 7 days, you control how long the link stays active. Once expired, the email is no longer accessible externally, keeping your test data secure by default.
Revocable anytime
Changed your mind? Disable any shared link instantly from your dashboard. Revoked links return a clean 404 page, no residual data exposed. You stay in full control of who can see what, and for how long.
No login required for viewers
Stakeholders, designers, and clients can view the shared email directly in their browser. No account creation, no password, no friction. Perfect for quick reviews and approvals when time is tight and you need fast feedback.
Available on Pro plans and above
Email sharing is available on Pro and Max plans. Generate unlimited shareable links with configurable expiration, revocation controls, and view tracking. Upgrade when your team needs collaboration.
Find any email in seconds
A busy development environment generates hundreds of test emails. SendPit gives you the tools to cut through the noise and find exactly what you are looking for, fast.
Full-text search
Search emails by subject line, sender address, or recipient. Find that specific password reset email from last Tuesday without scrolling through pages of results.
Date range filters
Narrow results by date range to focus on emails from a specific test run, sprint, or deployment window. Filter down to the exact time window that matters.
Paginated inbox
Large mailboxes with thousands of captured emails load quickly with server-side pagination. No infinite scroll lag, no browser freezes, just smooth navigation.
Read / unread status
Track which emails you have already reviewed. Mark emails as read or unread to keep your test inbox organized and ensure nothing slips through the cracks during QA.
Bulk delete
Clean up your mailbox after a test run with bulk delete. Select multiple emails and remove them in one action. Keep your workspace tidy and your storage usage lean.
Download .EML files
Export any captured email as a standard .EML file. Open it in Thunderbird, Outlook, Apple Mail, or any other desktop client to see exactly how it renders outside the browser.
Built for developers who value their time
SendPit is designed to stay out of your way. A clean interface, fast performance, and thoughtful defaults mean you spend less time navigating the tool and more time building your application.
Clean, distraction-free interface
No clutter, no upsells embedded in your workflow, no unnecessary chrome. The interface focuses entirely on your emails. Every pixel serves a purpose, from the inbox list to the detail view.
Full dark mode support
Work late without burning your retinas. SendPit respects your system preference and offers a complete dark mode experience across the entire application, including email previews and source views.
Keyboard-friendly navigation
Navigate between emails, switch between HTML and source views, and perform common actions without reaching for the mouse. Built for developers who live in their keyboard.
Fast loading, always
Backed by MongoDB for email storage, SendPit delivers fast query performance even with thousands of captured emails. Inbox lists, email detail views, and search results load in milliseconds, not seconds.
Start Inspecting
Emails Today
Every email your application sends tells a story. HTML rendering, headers, source code, attachments, and metadata all combine to determine whether your message arrives correctly or fails silently.
Stop guessing. Stop relying on manual checks and personal inboxes.
See every email, every detail, before it ever reaches a real user.
No credit card. Free tier available. Setup in under two minutes.