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JPG vs JPEG - Co Giong Nhau Khong?

Cap nhat lan cuoi: 2026-04-27. Su dung HEIC sang JPG hoac Nen anh cho bat ky cong viec anh nao trong trinh duyet cua ban.

Cau tra loi 30 giay. Co - JPG va JPEG la cung mot dinh dang anh. Ca hai phan mo rong tro toi cung mot tieu chuan (ISO/IEC 10918, dinh dang Joint Photographic Experts Group tu 1992). Hai phan mo rong ton tai vi Windows truoc 95 gioi han phan mo rong o ba ky tu, vi vay .jpeg bi cat thanh .jpg.

Lich su trong mot doan

Dinh dang duoc dat ten theo uy ban tieu chuan da xac dinh no - Joint Photographic Experts Group, JPEG. Phan mo rong tu nhien la .jpeg. Nhung MS-DOS va Windows 3.x su dung he thong tep FAT16, gioi han phan mo rong o ba ky tu. De van co the doc duoc, phan mo rong duoc rut ngan thanh .jpg.

Cai gi thuc su trong tep

Ca tep .jpg va .jpeg deu chua cung mot chuoi byte: header magic-number JPEG (cac byte FF D8 FF), du lieu hinh anh duoc ma hoa, va metadata. Doi ten mot .jpg thanh .jpeg - no van mo. Cac byte khong quan tam.

De biet them ngu canh dinh dang xem HEIC vs JPG vs WebP.

Neu anh cua ban o dinh dang HEIC (mac dinh cua iPhone truoc iOS 17), xem cach chuyen doi 100 anh HEIC sang JPG de thuc hien theo lo trong trinh duyet ma khong can cai ung dung. Neu bo chuyen doi mat du lieu EXIF hoac tra lai mau la, HEIC sang JPG - dieu gi thuc su hoat dong kiem tra tung cong cu voi cac truong hop do.

Last reviewed: 2026-07-01

FreetoolOnline editorial team

Last updated: Jul 6, 2026

Reviewed by the Free Tool Online editorial team · Tested in the current versions of Chrome, Firefox, Safari, and Edge before publishing. No account is needed to use any tool. Report a bug - we triage within 72 hours. · Last refreshed April 2026.

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Related tools:

Get JPEG Compression Level - JPEG compression level checker - inspect the quality value a JPG was saved with, estimate headroom
Base64 To Image - Base64 to image online - paste a data URI or raw Base64 string, click Convert, and your browser
Convert GIF To Images Frame - Extract every frame from an animated GIF and save each as PNG or JPG.
Convert HEIC to JPG online - Convert HEIC to JPG online - also PNG, WebP, or a combined PDF.
Image Converter Tools - Convert images between HEIC, JPG, PNG, SVG, WEBP, GIF, and Base64 online.
Convert Images to PDF - Images to PDF online - combine JPG, PNG, or WebP into a multi-page PDF.
Image To Base64 - Image to Base64 online - encode a PNG, JPG, or WebP into a Base64 data URI for CSS backgrounds,
Convert PDF To Images - PDF to images online - export every PDF page (or a selected range) as PNG or JPG.
SVG to PNG and WEBP Converter - SVG to PNG converter online - export a crisp PNG, WebP, or JPG from any vector file.
PNG to SVG by Interpolation algorithm - PNG to SVG converter online - trace a PNG or JPG into a scalable vector graphic via interpolation.
Compress JPEG by AI - Free online image compressor - drop a JPG, PNG, or WebP, preview the before/after, and download a
Insights Image Optimizer - Image optimizer online - compress JPG, PNG, and WebP for PageSpeed Insights.

Tags: #guide, #image-conversion, #jpg

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