Penukar BMP kepada PNG Dalam Talian

Tukar fail BMP anda kepada format PNG dalam 3 klik mudah.

PNG⌄

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⚙ Tetapan Pilihan

Resize

Color Filter

DPI

dpi

Crop (px)

Tukar BMP kepada PNG dalam talian — Percuma & Pantas

BMP tidak dimampatkan dan menghasilkan fail besar yang tidak praktikal untuk dikongsi. Menukar BMP kepada PNG memberikan pemampatan tanpa kehilangan — mengurangkan saiz fail secara dramatik.

Mengapa menukar BMP kepada PNG?

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Perkongsian web

PNG jauh lebih kecil daripada BMP dengan kualiti yang sama persis dikekalkan.

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Ketelusan

PNG menyokong saluran alfa — BMP tidak. Tukar untuk menambah sokongan ketelusan.

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Antara muka pengguna

Aset UI seperti ikon dan butang dibungkus sebagai PNG, bukan BMP.

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Aliran kerja e-mel

PNG boleh dilampirkan pada e-mel tanpa had saiz yang melampau.

Cara Menukar BMP kepada PNG?

Muat naik fail BMP anda

Klik "Pilih Fail" atau seret imej BMP anda.

Pilih PNG sebagai format output

Pilih "PNG" sebagai format output yang dikehendaki.

Tukar fail

Klik "Tukar Sekarang" untuk memulakan penukaran BMP kepada PNG.

Muat turun fail PNG

Setelah penukaran selesai, muat turun fail PNG anda.

BMP

Sambungan fail.bmp
PeneranganBMP (Bitmap) stores uncompressed bitmap digital images independently of the display device. Large file sizes but no quality loss.
Program berkaitanMicrosoft Paint, Adobe Photoshop, GIMP, MS Photo Editor
Dibangunkan olehMicrosoft
Jenis MIMEimage/bmp

PNG

Sambungan fail.png
PeneranganPNG (Portable Network Graphics) is a lossless raster image format that supports transparency. Ideal for graphics, logos, icons, and images that require a transparent background.
Program berkaitanAdobe Photoshop, GIMP, Microsoft Paint, Preview (Mac)
Dibangunkan olehPNG Development Group
Jenis MIMEimage/png

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Pro tip: PNG tanpa kehilangan mengekalkan kualiti piksel yang sama persis dengan BMP sumber. Penjimatan saiz biasanya 50–70%.

Alat Penukaran BMP Percuma

Panduan format

BMP vs PNG: Panduan format lengkap

Ciri

BMP (sumber)

PNG (sasaran)

🗜️Pemampatan

None

Lossless

🔍Ketelusan

Only in 32-bit BMP via BITMAPV4/V5HEADER alpha channel — inconsistently supported by applications

Full 8-bit alpha channel — each pixel can be any opacity level from fully transparent (0) to fully opaque (255)

🎬Animasi

Not supported

Not in standard PNG; APNG (Animated PNG) is a non-standard extension with limited, inconsistent support

🎨Kedalaman warna

1-bit monochrome to 32-bit RGBA — most common use is 24-bit (16.7 million colors)

24-bit RGB (16.7M colors) or 32-bit RGBA (16.7M colors + full alpha); up to 48-bit for professional workflows

📦Saiz fail

3 MB – 25 MB per image — a 1920×1080 24-bit BMP is approximately 5.9 MB

100 KB – 10 MB — significantly larger than JPG for photographic content

🌐Sokongan pelayar

Technically supported by most browsers but virtually never used on the web due to enormous file sizes

Universal — all modern browsers, operating systems, and devices including IE7+

🏆Terbaik untuk

Legacy Windows apps

Graphics, logos, UI

Kes penggunaan biasa: BMP → PNG

🌐 Web graphics preparation🎨 Design software import📤 Cross-platform file sharing💾 Lossless size reduction

⚠️This is one of the most recommended BMP conversions — you get identical lossless quality at 50–70% smaller files, plus added transparency support and universal cross-platform compatibility.

BMP

Tentang format {from} BMP

BMP (Device-Independent Bitmap) was introduced by Microsoft with the Windows 3.0 SDK in 1990 as the native raster format for Windows. It stores pixel data with zero compression, ensuring perfect reproduction across all hardware. BMP dominated early Windows computing for wallpapers, icons, and application graphics. As the internet grew, its massive file sizes made it impractical for any networked use, displacing it with JPG, PNG, and WebP.

Kelebihan

+Zero compression artifacts — the highest possible fidelity for raw storage

+Simple, well-documented format trivial to read/write programmatically

+Universal support across all Windows software and development tools

+Direct pixel data access with no decoding overhead

Keterbatasan

−Extremely large files — a 1080p image is ~6 MB vs ~300 KB as JPG

−No practical web use — impractically large for any internet delivery

−Limited support outside Windows ecosystem

−No meaningful advantages over PNG for any modern use case

Bila digunakan

→Legacy Windows applications that exclusively require BMP format

→Automated Windows image processing pipelines as an intermediate format

→System resource files (wallpaper, specific application bitmaps)

→When absolute raw pixel fidelity is needed and file size is irrelevant

Tips

•PNG achieves identical lossless quality to BMP at 50–70% smaller file sizes

•Convert to JPG for a 95%+ file size reduction with visually excellent quality

•24-bit BMP and 24-bit PNG are visually identical — PNG is always the better choice

•There are essentially no modern use cases where BMP is preferable to PNG

PNG

Tentang format {from} PNG

PNG was created in 1996 as a free, patent-unencumbered alternative to GIF after Unisys enforced its LZW compression patent. The PNG Development Group introduced full-color support, genuine alpha transparency, and superior lossless compression. It quickly became the web standard for logos, UI elements, and any image requiring a transparent background — a role it dominates to this day.

Kelebihan

+Lossless — every pixel preserved with zero compression artifacts

+Full 8-bit alpha channel for smooth, semi-transparent edges

+Ideal for text, logos, and graphics where sharpness is non-negotiable

+Unlimited re-saves without any quality degradation whatsoever

+Supports up to 48-bit color depth for professional color workflows

Keterbatasan

−3–5× larger than JPG for photographic content

−No native animation support in standard PNG

−Slower to load than WebP for equivalent image content

−Not practical for very high-resolution photographs at web scale

Bila digunakan

→Logos, icons, and brand marks placed over any background color

→Screenshots where text must remain perfectly sharp

→Images edited in multiple passes (keep as the master file)

→Web UI elements, buttons, icons, and interface assets

Tips

•PNG-8 (256 colors) halves the file size of PNG-24 for simple flat-color graphics

•Converting PNG to WebP typically saves ~30% file size with no visible quality change

•Alpha transparency requires PNG-24 or PNG-32 — PNG-8 only supports binary transparency

•Tools like pngquant can reduce PNG size by 50–80% with minimal quality impact

Alat penukaran paling popular

3GP to MP4

Soalan Lazim

Tentang menukar BMP kepada PNG.

Adakah penukar BMP kepada PNG ini percuma?

Ya, penukar kami 100% percuma. Tanpa pendaftaran, tanpa bayaran tersembunyi.

Berapa lama masa untuk menukar BMP kepada PNG?

Penukaran biasanya mengambil masa beberapa saat sahaja.

Adakah fail BMP saya selamat?

Ya. Fail anda dipadam secara automatik selepas penukaran.

Apakah saiz fail maksimum?

Anda boleh menukar fail sehingga 400 MB secara percuma.

Adakah saya perlu memasang perisian?

Tidak perlu pemasangan. Berfungsi terus dalam pelayar web.

Mengapa DigitalOfficePro?

Dipercayai oleh jutaan pengguna di seluruh dunia

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Percuma untuk semua

Perkhidmatan PERCUMA sepenuhnya. Tanpa kos, tanpa pendaftaran.

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100% Selamat

Fail anda dipadam secara automatik dari pelayan kami selepas penukaran.

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Kelajuan tinggi

Fail anda ditukar menggunakan pelayan awan kami yang berkuasa.

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Tanpa had

Tiada had pada bilangan fail yang boleh anda tukar.

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Output berkualiti

Kami menggunakan algoritma penukaran berkualiti tinggi.

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Lebih 100 format

Kami menyokong lebih 200 format fail.

Format input yang disokong

Muat naik mana-mana format berikut dan tukar kepada JPG, PNG, WEBP, BMP, GIF, atau TIFF.

Imej standard

JPGPNGWEBPBMPGIFTIFFHEICPPMWBMP

Reka bentuk & Vektor

PSDAISVGXCFTGAPCX

RAW Kamera

ARWCR2CRWDNGNEFORFPEFRAFRAWSR2MRWERFMEF3FRX3F