Thailand eVisa photo requirements and why uploads fail silently

Thailand's eVisa portal (thaievisa.go.th, mandatory for most embassy applications since 2025) accepts photos as JPG or JPEG only, between 200 KB and 2 MB, at least 350 x 450 pixels with 600 x 800 recommended, on a plain white background. The portal's habit, widely reported by applicants, is rejecting photos without saying why: the silent causes are non-JPEG files, files outside the size window, and upload widget flakiness. Convert to JPEG, size the file into the window, and if a compliant photo still will not attach, switch browsers before blaming the photo.

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The spec, and the silent failures

Format is the sharp edge: PNG and HEIC files fail, so convert to JPEG first. Then the window: at least 200 KB (an unusual minimum that catches over-compressed files) and at most 2 MB, at least 350 x 450 pixels. A plain white background, recent front-facing portrait, and the usual content rules apply.

Applicants on the travel forums describe photos rejected with no stated reason. Before reshooting, check the three silent causes in order: file type, file size, and the browser. The upload widget misbehaves with drag and drop in some browsers, so use the file picker, and a different browser entirely if failures persist.

The passport page upload

The biodata page image has the same practical rules: sharp, flat, glare-free, with the full machine-readable zone visible at the bottom. Blurry MRZ lines are a common cause of applications bouncing later even when the upload itself succeeded.

Frequently asked questions

What photo does the Thailand eVisa accept?

A JPG or JPEG between 200 KB and 2 MB, at least 350 x 450 pixels (600 x 800 recommended), plain white background, taken recently.

Why does the Thai eVisa reject my photo with no reason?

Usually file type or size: only JPEG is accepted, and the file must sit between 200 KB and 2 MB. If those are right, try the file picker instead of drag and drop, or another browser.

Is there a minimum file size?

Yes, 200 KB, which is unusual. A photo compressed below it fails, so export at normal quality rather than maximum compression.