离线图片转换器
离线转换图片，无需下载软件和上传文件！
输出文件：
| # | 文件名 | 文件大小 | 操作 |
|---|
使用说明
选择本地图片文件，选择要转换的目标图片格式，然后点击“离线转换”按钮开始批量离线转换。 每个文件最大可达 2GB。 这个离线转换器将首先尝试使用网络浏览器中的画布来转换图像。 图像格式取决于您当前的网络浏览器是否支持。 例如：最新的 Chrome 浏览器支持 AVIF 图像，而旧版本不支持。 如果您当前的网络浏览器不支持该图像格式，那么离线转换器将尝试使用 Javascript 来转换图像。 如果此离线转换器在您的网络浏览器中转换失败，请改用在线转换器。
以下是支持的主要图像格式：
| # | 格式 | 格式名称 |
|---|---|---|
| 1 | JPG | Joint Photographic Experts Group |
| 2 | PNG | Portable Network Graphics |
| 3 | WEBP | Weppy Image Format |
| 4 | GIF | CompuServe Graphics Interchange Format |
| 5 | SVG | Scalable Vector Graphics |
| 6 | AVIF | AV1 Image File Format |
| 7 | HEIC | High Efficiency Image File Format |
| 8 | DDS | Microsoft Direct Draw Surface |
| 9 | PSD | Adobe Photoshop Bitmap File |
| 10 | DNG | Digital Negative |
| 11 | CR2 | Canon Digital Camera Raw Image Format |
| 12 | BMP | Microsoft Windows Bitmap |
| 13 | TIFF | Tagged Image File Format |
| 14 | PS | Adobe PostScript File |
| 15 | EPS | Adobe Encapsulated PostScript |
| 16 | JPEG | Joint Photographic Experts Group |
| 17 | JFIF | JPEG File Interchange Format |
| 18 | JP2 | JPEG 2000 |
| 19 | ICO | Microsoft Icon | 20 | Portable Document Format |
| 21 | AAI | AAI Dune image |
| 22 | RAW | Camera Raw Image |
| 23 | AVS | AVS X image |
| 24 | CIN | Kodak Cineon Image Format |
| 25 | CMYK | Raw Image Format |
| 26 | CMYKA | Raw Image Format |
| 27 | CRW | Canon Digital Camera Raw Image Format |
| 28 | DCX | ZSoft IBM PC Multi-page Paintbrush Image |
| 29 | DIB | Microsoft Windows Device Independent Bitmap |
| 30 | DOT | Graph Visualization |
| 31 | DPX | SMPTE Digital Moving Picture Exchange |
| 32 | EPDF | Encapsulated Portable Document Format |
| 33 | EPI | Adobe Encapsulated PostScript Interchange Format |
| 34 | EPS2 | Adobe Level II Encapsulated PostScript |
| 35 | EPS3 | Adobe Level III Encapsulated PostScript |
| 36 | EPSF | Adobe Encapsulated PostScript |
| 37 | EPSI | Adobe Encapsulated PostScript Interchange Format |
| 38 | EPT | Adobe Encapsulated PostScript Interchange Format with TIFF Preview |
| 39 | EXR | High Dynamic-range File Format |
| 40 | FAX | Group 3 TIFF |
| 41 | GRAY | Raw Gray Samples |
| 42 | HDR | Radiance RGBE Image Format |
| 43 | HRZ | Slow Scane TeleVision |
| 44 | JNG | Multiple-image Network Graphics |
| 45 | J2C | JPEG-2000 Code Stream Syntax |
| 46 | J2K | JPEG-2000 Code Stream Syntax |
| 47 | MIFF | Magick Image File Format |
| 48 | MONO | Bi-level Bitmap in Least-significant-byte First Order |
| 49 | MNG | Multiple-image Network Graphics |
| 50 | MPC | Magick Persistent Cache Image File Format |
| 51 | MTV | MTV Raytracing Image Format |
| 52 | OTB | On-the-air Bitmap |
| 53 | PAM | Common 2-dimensional Bitmap Format |
| 54 | PBM | Portable Bitmap Format |
| 55 | PCD | Photo CD |
| 56 | PCL | HP Page Control Language |
| 57 | PCX | ZSoft IBM PC Paintbrush File |
| 58 | PFM | Portable Float Map Format |
| 59 | PGM | Portable Graymap Format |
| 60 | PICT | Apple Macintosh QuickDraw/PICT File |
| 61 | PNM | Portable Anymap |
| 62 | PPM | Portable Pixmap Format |
| 63 | PS2 | Adobe Level II PostScript File |
| 64 | PS3 | Adobe Level III PostScript File |
| 65 | PTIF | Pyramid Encoded TIFF |
| 66 | SGI | Irix RGB Image |
| 67 | SUN | SUN Rasterfile |
| 68 | TGA | Truevision Targa Image |
| 69 | TTF | TrueType Font File |
| 70 | UIL | X-Motif UIL Table |
| 71 | UYVY | Interleaved YUV Raw Image |
| 72 | VICAR | VICAR Rasterfile Format |
| 73 | VIFF | Khoros Visualization Image File Format |
| 74 | WBMP | Wireless Bitmap |
| 75 | WPG | Word Perfect Graphics File |
| 76 | XBM | X Windows System Bitmap |
| 77 | XPM | X Windows System Pixmap |
| 78 | ARW | Sony Digital Camera Alpha Raw Image Format |
| 79 | APNG | Animated Portable Network Graphics |
| 80 | QOI | Quite OK Image Format |
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