Tumblr · Image size

Tumblr Post Image Size

Tumblr photo posts look clear around 1280×720 (16:9) or a tall 1080×1620 (2:3). Export a intentional frame, then download in your browser.

Last verified 2026-08-19 · Based on Tumblr UI as of 2026-08-19. Exact crops and pixels can shift—preview before you publish.

Tumblr post size 1280×720 (16:9) with safe zone
1280×720 (16:9). Dashed red line = keep faces and type inside.

Browser crop · stays on your device

Crop your Tumblr post image

1280 × 720

Add a photo to crop

Upload a photo—or try the sample—then keep the subject inside the safe margin before you download.

Size specs

Tumblr accepts flexible photo sizes. These presets keep exports intentional for dashboard width instead of uploading a random phone dump.

Publish

Export this for Tumblr upload.

Landscape photo post

Recommended

1280×720 16:9

Practical wide still that stays sharp when Tumblr scales for the dashboard column.

Use in tool

Tall photo post

1080×1620 2:3

Vertical still for photo posts that want more height in the feed.

Use in tool
Asset Pixels Ratio Notes Action
Landscape photo post Recommended 1280×720 16:9 Practical wide still that stays sharp when Tumblr scales for the dashboard column. Use in tool
Tall photo post 1080×1620 2:3 Vertical still for photo posts that want more height in the feed. Use in tool

Tumblr posts are flexible—but dashboard width is not infinite

Unlike a fixed cover slot, Tumblr photo posts accept many ratios. The failure mode is uploading a huge, soft phone dump and hoping the dashboard looks intentional. Export a clean master around 1280px on the long edge so scaling stays sharp.

Landscape 1280×720 works for cinematic stills. Tall 1080×1620 (2:3) claims more vertical space—similar to Pin habits, but this is still Tumblr, not Pinterest discovery.

Photosets split the column into cells. Center subjects inside each cell; edge-hugging faces disappear when Tumblr tiles the set.

Headers and avatars are branding slots, not post substitutes. Do not paste the 2048×1152 header into a post and accept letterboxing as “style.”

Good vs weak crop

Same landscape card—edges and tiny type fail after compression or multi-image crop.

Intentional dashboard still

  • Clear 1280-wide master
  • Subject inside the margin
  • Ratio chosen on purpose

Soft dump or wrong banner

  • Header stretched into a post
  • Soft megapixel dump with no crop
  • Faces on photoset cell edges

Before you upload

Tick these off against your crop preview—nothing is saved.

Related surfaces compared

Similar-looking slots often use different ratios—do not reuse one export for all of them.

Photo post (landscape)

1280 × 720

This page default. Wide dashboard still.

Photo post (tall)

1080 × 1620

Vertical option on this page.

Header image

2048 × 1152

Blog banner—not a post.

Avatar

512 × 512

Identity tile—not a post.

SurfaceTypical sizeNote
Photo post (landscape)1280 × 720This page default. Wide dashboard still.
Photo post (tall)1080 × 1620Vertical option on this page.
Header image2048 × 1152Blog banner—not a post.
Avatar512 × 512Identity tile—not a post.

Design for the dashboard column

The dashboard shows a narrower column than a full desktop browser window. Fine detail disappears. Prefer bold subjects and short on-image text.

  • Around 1280px wide is a strong practical ceiling for clarity.
  • Compress for the web—members scroll on phones.
  • Judge the live post, not only the camera roll original.

Photosets need per-cell framing

A two- or three-image set splits width. Crop each cell as if it were its own tiny post. A single panoramic split across cells usually chops faces.

  • Center each subject before you build the set.
  • Keep ratios consistent across cells when you can.
  • Test the set on mobile—cells get smaller there.

File requirements

JPG for photographs. Prefer sRGB. Tumblr will scale for the theme—start from a clean intentional crop.

Landscape preset
1280 × 720 px (16:9)
Tall preset
1080 × 1620 px (2:3)
Formats
JPG or PNG (sRGB)
Not this slot
Header banner, avatar square

Common mistakes

  • Uploading an uncropped phone dump at random megapixels.
  • Reusing the header as a post without a fresh frame.
  • Photosets that bisect faces across cells.
  • Tiny type meant to be read on a desktop canvas.

How to use the crop tool

Upload a photo, choose Landscape (1280×720) or Tall (1080×1620), drag until the subject clears the margin, then download. Cropping stays in the browser.

  • Match the ratio to the story—wide scene vs tall portrait.
  • For photosets, crop each image before uploading the set.

After you download

From this download to a live upload in a few minutes.

  1. 1

    Download the JPG from the tool.

  2. 2

    Create a photo post (or photoset) on Tumblr and upload the file(s).

  3. 3

    Check the dashboard and your blog theme on phone and desktop.

  4. 4

    If framing feels off, re-crop here and replace the image.

Frequently asked questions

What size should Tumblr post images be?

There is no single mandatory size. 1280×720 (16:9) and 1080×1620 (2:3) are strong practical exports for clear dashboard photos.

Does Tumblr crop my posts?

Themes and the dashboard scale images. Intentional crops look better than random phone dumps. Photosets also divide width into cells.

Is this the same as the Tumblr header?

No. Headers follow Tumblr help around 2048×1152. Posts are flexible feed stills—export separately.

Can I crop Tumblr posts here?

Yes. The in-browser crop stays on your device until you download and upload to Tumblr yourself.