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Zero-Crop Channel Art Engine

Free YouTube Banner Maker That Gets Every Device Crop Right

Resize existing artwork or create from scratch. Preview exact cuts across TV, desktop, tablet, and mobile displays before uploading to YouTube Studio—with 100% in-browser processing, no watermarks, and no sign-up.

100% Client-Side Privacy
No Sign-Up or Accounts
No Watermark
Instant 2560×1440 Export
Three Dedicated Workflows

Choose Your Channel Art Door

Whether you have finished artwork that needs resizing, want to check an existing banner for mobile cutoff, or need a fresh mobile-tested design.

Door 01 · Fix (Recommended)The Wedge

Banner Resizer & Refitter

Upload any existing image and fit it to YouTube's exact dimensions with live per-device preview.

  • Reposition focal subjects safely inside the mobile safe area
  • Toggle instant YouTube CDN re-encode compression preview
  • Inspect mobile, desktop, tablet, and TV crops in real time
Fit Existing Artwork (Fix Door)
Door 02 · CheckDiagnostic

Safe Area Checker

Instant diagnostic safe-area crop verification with actionable plain-language verdicts.

  • Immediate per-device verdict on text and logo positioning
  • Clear warnings if graphics collide with mobile crop boundaries
  • One-click handoff into the resizer to adjust your layout
Test Safe Area (Check Door)
Door 03 · CreateGenerator

Banner Generator

Start from curated, geometry-safe templates engineered to fit mobile screens.

  • Category-specific layouts for gaming, tech, podcasting, and vlogs
  • Typography and logos pre-aligned inside the safe center frame
  • Customizable colors, text layers, and background art
Empirical Crop Geometry

What YouTube Actually Does to Your Banner

YouTube does not scale your channel art down evenly. Instead, it uploads a single 16:9 canvas (2560 × 1440 px) and carves out different viewports depending on the viewer's device.

1. TV Screen Viewport (2560 × 1440 px · Full 16:9 Canvas)2. Desktop Viewport (2560 × 424 px · Top & Bottom Cropped)3. Tablet Viewport (1855 × 424 px · Scaled Ribbon)4. Mobile Safe Area (1546 × 423 px)Visible on every device without exception · Keep text, logos & faces here
TV Display

2560 × 1440 px

Full 16:9 canvas displayed exclusively on smart TVs and video game consoles.

Desktop Ribbon

2560 × 424 px

Wide horizontal strip. The top ~35% and bottom ~35% are cropped off by browser layouts.

Tablet Crop

1855 × 424 px

Horizontal ribbon crop centered on the safe zone. Sides are clipped compared to desktop.

Mobile Safe Area

1546 × 423 px

Center intersection. Fully visible across all smartphones, tablets, computers, and TVs.

Why YouTube Re-Compresses Every Banner Upload

YouTube automatically compresses every uploaded banner to approximately 134 KB on desktop viewports, and even smaller packages for mobile screens. This automatic re-compression cannot be avoided or bypassed by any export setting or file format.

Because YouTube's compression pipeline optimizes for worldwide bandwidth rather than graphical fidelity, aggressive re-encoding can soften delicate gradients and fine text. Our tools provide an approximate preview of this re-encode step so you can test contrast and readability before uploading to your live channel.

Reference Specifications

Official YouTube Banner Dimensions & Limits

The verified parameters enforced by YouTube Studio upload validation and responsive CDN delivery.

Official YouTube Banner Specifications and Dimensions
ParameterSpecification ValueRequirement Details
Recommended Size2560 × 1440 pxStandard 16:9 canvas displayed completely on TV displays
Minimum Size2048 × 1152 pxLowest upload dimensions accepted by YouTube Studio
Safe Area (Full Canvas)1546 × 423 pxEnsures no cutoff on any smartphone or mobile viewport
Safe Area (Min Canvas)1235 × 338 pxProportional safe area at the 2048 × 1152 minimum upload size
Safe Area Fraction60.3% × 29.3%Unified center frame proportion across all canvas resolutions
Maximum File Size6 MBHard limit enforced by YouTube Studio upload validation
Color SpacesRGBStandard web color profile to prevent post-upload hue shifting
Accepted FormatsPNG, JPG, WebP, GIFStatic image uploads only; animated GIFs are not supported
Engineering & Sizing Documentation

Complete Channel Art Guides

Deep-dive technical guides explaining the mathematics of YouTube banner cropping and responsive safe areas.

Dimension Standards · Guide

Complete YouTube Banner Size & Dimension Guide

Comprehensive reference covering recommended dimensions (2560 × 1440 px), minimum sizes, maximum upload limits, and the exact viewport fractions served to each viewing device.

Read Banner Size Guide
Crop Reconciliation · Guide

Safe Area Math & Crop Reconciliation Guide

The arithmetic reconciling YouTube's two official safe-area numbers. Proves why 1235×338 at minimum upload matches 1546×423 at full upload as the exact same centered window.

Read Safe Area Guide
Questions & Answers

Frequently Asked Questions

Everything you need to know about YouTube banner dimensions, mobile safe areas, and avoiding cutoff surprises.

Why does my YouTube banner get cut off on mobile phones?
YouTube displays different portions of your banner depending on screen size. While smart TVs display the entire 2560 × 1440 px artwork, mobile devices crop away the outer edges and show only the center 1546 × 423 px safe area. If your text, logo, or key visual elements sit outside this central zone, they will be clipped on smartphones.
What are the required dimensions and file size limits?
YouTube recommends an upload size of 2560 × 1440 px with a 16:9 aspect ratio. The minimum accepted size is 2048 × 1152 px. The maximum file size limit is 6 MB. The mobile safe area where all essential elements must remain visible is 1546 × 423 px.
Why does YouTube re-compress my banner after upload?
YouTube serves banner images to millions of viewers on varying network connections. To ensure fast load times, YouTube Studio automatically re-encodes uploaded images down to approximately 134 KB for desktop devices and even smaller packages for mobile devices. Using this tool's re-encode simulation allows you to preview that compression before publishing.
How does cover-fit resizing prevent image distortion?
Unlike simple stretching tools that squish or elongate your image to fit a 16:9 ratio, cover-fit scaling preserves your image's native aspect ratio. It scales your image to completely cover the 2560 × 1440 canvas without letterboxing, and lets you pan and nudge your subject safely into the mobile safe area without creating transparent borders.
Why is this tool free with no account and no watermark?
This tool runs 100% in your browser using HTML5 Canvas. Because processing happens locally on your device, there are no server compute or cloud storage costs required to process your image. We believe creators deserve reliable, honest tools without artificial paywalls or watermarks.