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JPG vs JPEG - Sao o Mesmo?

Ultima revisao: 2026-04-27. Use HEIC para JPG ou Comprimir imagem para qualquer trabalho com fotos no seu navegador.

Resposta de 30 segundos. Sim - JPG e JPEG sao o mesmo formato de imagem. Ambas as extensoes apontam para o mesmo padrao (ISO/IEC 10918, o formato do Joint Photographic Experts Group de 1992). As duas extensoes existem porque o Windows antes de 95 limitava extensoes a tres letras, entao .jpeg foi truncado para .jpg.

A historia em um paragrafo

O formato e nomeado pelo comite de padroes que o definiu - o Joint Photographic Experts Group, JPEG. A extensao natural era .jpeg. Mas MS-DOS e Windows 3.x usavam o sistema de arquivos FAT16, que limitava extensoes a tres caracteres. Para permanecer legivel, a extensao foi encurtada para .jpg.

O que esta de fato no arquivo

Tanto arquivos .jpg quanto .jpeg contem a mesma sequencia de bytes: um cabecalho magic-number JPEG (os bytes FF D8 FF), dados de imagem codificados, e metadados. Renomeie um .jpg para .jpeg - ainda abre. Os bytes nao se importam.

Para mais contexto de formato veja HEIC vs JPG vs WebP.

Se as suas fotos estiverem no formato HEIC (padrao do iPhone antes do iOS 17), veja como converter 100 fotos HEIC para JPG para os passos em lote no navegador sem instalar nada. Se o conversor perder dados EXIF ou devolver cores erradas, HEIC para JPG - o que realmente funciona testa cada ferramenta nesses casos.

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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