Design mail pieces without leaving your browser.
Start from a template, upload your own artwork, or build from scratch in our visual editor. Add merge fields, preview the proof, and send. No design tools required.
Editor features
Professional design tools, zero learning curve.
You don’t need Photoshop, Figma, or a graphic designer on staff. The MailStream editor gives marketers and ops teams everything they need to create, personalize, and proof mail pieces independently.
- Drag-and-drop builder
- Place text, images, and QR codes on a canvas. Snap-to-grid and real-time preview help design mail pieces quickly.
- Template library
- Explore templates for thank-you cards, promotions, invites, and more. Customize colors and fonts to fit your brand.
- PDF & image upload
- Have a design? Upload a press-ready PDF or high-res image to skip the editor. We validate bleed and trim automatically.
- Merge field personalization
- Insert dynamic fields like recipient name or offer code into your design. Each piece renders uniquely at print.
- Proof preview
- View a precise rendering of your mail piece before printing. Front, back, and fold lines are visible for clarity.
- Brand asset management
- Upload your logo, color palette, and approved fonts once. They stay available across all templates and future designs for consistency.
Editor
Templates
Upload
Tracking
Quality
Brand
- 50+
- Professional templates
- 5 min
- Average design time
- 300DPI
- Print resolution
- 100%
- WYSIWYG accuracy
- We are the manufacturer
- so your mail goes directly from our floor to USPS, with quality checks, no middlemen or delays.
- HITRUST-certified facility
- means your data runs in a HITRUST-certified environment with enterprise security and compliance.
- 25+ years of expertise
- in direct mail, starting with an early online printer in 1998. We’ve tackled every edge case.
- Real-time USPS tracking
- via Intelligent Mail barcodes. Know when each piece is printed, in transit, and delivered through the dashboard, API, or webhooks.
How it works
From idea to mailbox in four steps.
- Pick a starting point
- Choose a template, upload your own PDF, or open a blank canvas. All three paths lead to the same high-quality output.
- Customize and personalize
- Edit copy, swap images, insert merge fields, and adjust layout. The editor renders changes instantly so you can iterate without guessing.
- Preview and approve
- Generate a print-ready proof showing both sides of your postcard or every page of your letter. Approve it, and your design is locked for production.
- Send or save as template
- Send immediately, schedule for later, or save your design as a reusable template for future campaigns and API-triggered sends.
For developers
Templates work with the API too.
Every template you create in the editor is available as an API resource. Pass merge variables in your API call and MailStream renders, prints, and ships, with no UI interaction needed.
What everyone is saying
Trusted by professionals.
We replaced three vendors with MailStream and finally got full visibility from print to delivery. Tracking every piece in real time changed how we measure direct mail.
Daniel H.
VP of Growth, Northbridge Labs
The HTML design tool is a game changer. We design, personalize, and send without ever leaving the platform. No more emailing PDF proofs back and forth.
Olivia W.
Director of Lifecycle, Harborline
Every mail piece stays perfectly on brand. The template library and variable system mean our team can launch campaigns without waiting on a designer.
Rachel A.
Creative Director, Maple & Co.
Join agencies, SaaS teams, and operators using MailStream to automate direct mail at scale, without manual vendors or guesswork.