Postal · server-powered

USPS Intelligent Mail generator.

The USPS Intelligent Mail barcode (IMb) is the 4-state code on US letter mail — it combines tracking and routing in up to 31 digits and is required for automation discounts.

Live previewFree SVG vector600 DPI freeISO quiet zonesNo sign-up

All 74 types

US mail 4-state (IMb) — up to 31 digits.

Content

Bulk

Size

PNG resolution

Code color

Background

Rotation

Module width

Bar height

Text size

Show text under the bars

Interpret ^FNC1 and ^NNN escapes (advanced — for raw GS1 / control characters)

Preview

Example — start typing to replace it

Renders on our servers — the one Plume tool that does.
We keep the code type and content length, never what you encode.
Free SVG vector + up to 600 DPI PNG, commercial use allowed.

Where USPS Intelligent Mail is used

Bulk mail automation discounts
Mail piece tracking (Informed Visibility)
Reply mail and remittance envelopes

More barcode types

USPS POSTNET USPS PLANET Royal Mail 4-State (RM4SCC)Royal Mail Mailmark 2D Australia Post 4-State Japan Post KIX (Dutch PostNL)Deutsche Post Identcode All 74 types →