网上转换文件格式的软件大多数商业软件，而且为了转换一个文件弄个软件设置太麻烦了。youconvertit.com是一个免费的在线文件格式转换网站，它提供免费的文件格式转换，并发到你的Email

它支持上传文件转换和直接转换网上的视频，比如youtube，把视频装换成你要的格式，然后发到你指定的邮箱。

它支持以下文件列表。具体的功能就待你自己去挖掘吧

AUDIO

AAC (Advanced Audio Coding File)

AIF (Audio Interchange File Format)

AIFF (Audio Interchange File Format)

MP3 (MPEG Audio Layer 3)

OGG (Ogg Vorbis Codec Compressed Multimedia File)

RA (Real Audio Sound)

WAV (Windows Waveform Sound)

WMA (Windows Media Audio)

DOCUMENT

CSV (Text CSV)

DOC (Microsoft Word 97/2000/XP)

EPDF (Encapsulated Portable Document Format)

EPI (Encapsulated PostScript Interchange format)

EPS (Adobe Encapsulated PostScript)

EPS2 (Adobe Level II Encapsulated PostScript)

EPS3 (Adobe Level III Encapsulated PostScript)

EPSF (Encapsulated PostScript)

EPSI (Adobe Encapsulated PostScript Interchange format)

EPT (Encapsulated PostScript Interchange TIFF Preview)

HTM (HyperText Markup Language)

HTML (HyperText Markup Language)

INFO (UNIX GNU Info Reader File)

ODG (OpenDocument Drawing)

ODP (OpenDocument Presentation)

ODS (OpenDocument Spreadsheet)

ODT (OpenDocument Text)

OTG (OpenDocument Drawing Template)

OTP (OpenDocument Presentation Template)

OTS (OpenDocument Spreadsheet Template)

OTT (OpenDocument Text Template)

PDF (PDF-Portable Document Format)

POT (Microsoft PowerPoint 97/2000/XP Template)

PPT (Microsoft PowerPoint 97/2000/XP)

PS (Adobe PostScript file)

PS2 (Adobe Level II PostScript file)

PS3 (Adobe Level III PostScript file)

PSD (Photoshop Format)

RTF (Rich Text Format)

SDA (StarDraw 5.0)

SDC (StarCalc 5.0)

SDW (StarWriter)

SHTML (Hypertext Markup Language client-side image map)

STC (OpenOffice.og 1.0 Spreadsheet Template)

STI (OpenOffice.org 1.0 Presentation Template)

STW (OpenOffice.og 1.0 Text Document Template)

SVM (SVM – StarView Metafile)

SXC (OpenOffice.org 1.0 Spreadsheet)

SXD (OpenOffice.org 1.0 Drawing)

SXI (OpenOffice 1.0 Presentation)

SXW (OpenOffice.og 1.0 Text Document)

TXT (TEXT)

VOR (StarWriter 5.0 Template)

XHTML (XHTML)

XLS (Microsoft Excel 97/2000/XP)

XLT (Microsoft Excel 97/2000/XP Template)

IMAGE

ART (PFS: 1st Publisher)

AVS (AVS X image)

BMP (Windows OS/2 Bitmap Graphics)

CIN (Kodak Cineon Bitmap File)

CUR (Microsoft Cursor Icon)

CUT (DR Halo)

DCM (Digital Imaging and Communications in Medicine (DICOM) )

DCX (ZSoft IBM PC multi-page Paintbrush image)

DIB (Microsoft Windows Device Independent Bitmap)

DPX (Digital Moving Picture Exchange)

EMF (Extended (Enhanced) Windows Metafile Format)

EXIF (Exif digital camera binary data)

FAX (Group 3 TIFF)

FITS (Flexible Image Transport System)

GIF (Graphic Interchange Format)

GRAY (Raw Gray Samples)

ICB (Truevision Targa image (ICB))

ICO (Windows Icon)

ICON (Windows Icon)

JNG (JPEG Network Graphic Bitmap)

JP2 (JPEG-2000 JP2 File)

JPC (JPEG-2000 Code Stream Bitmap)

JPEG (Joint Photographic Experts Group JFIF format (62))

JPG (Joint Photographic Experts Group JFIF format)

MIFF (Magick image file format)

MNG (Multi-image Network Graphic Animation)

MONO (Bi-level bitmap in least-significant-byte first order)

MPC (Magick Persistent Cache image file format)

MSL (Magick Scripting Language)

MTV (MTV Raytracing image format)

MVG (Magick Vector Graphics)

OTB (On-the-air Bitmap)

P7 (Xv`s Visual Schnauzer thumbnail format)

PALM (Palm pixmap)

PBM (UNIX Portable Bitmap Graphic)

PCD (Photo-CD Image)

PCDS (Photo-CD Image)

PCL (HP Page Control Language)

PCX (ZSoft IBM PC Paintbrush file)

PDB (Palm Database ImageViewer Format)

PFA (Postscript Type 1 font (ASCII))

PFB (Postscript Type 1 font (binary))

PGM (Portable graymap format (gray scale))

PICON (Personal Icon)

PICT (Macintosh Quickdraw/PICT Drawing)

PIX (Alias/Wavefront RLE image format)

PNG (Portable (Public) Network Graphic)

PNM (PBM Portable Any Map Graphic Bitmap)

PPM (Portable pixmap format (color))

PTIF (Pyramid encoded TIFF)

PWP (Seattle File Works multi-image file)

RLA (Alias/Wavefront image file)

RLE (Utah Run length encoded image file)

SGI (Irix RGB image)

SUN (SUN Rasterfile)

TGA (Truevision Targa image (TGA))

THUMBNAIL (Thumbnail)

TIF (Tagged Image Format File)

TIFF (Tagged Image Format File)

TIM (PSX TIM file)

UYVY (Interleaved YUV Raw Image)

VDA (Truevision Targa image (VDA))

VICAR (VICAR rasterfile format)

VIFF (Khoros Visualization Image File Format)

WBMP (Wireless Bitmap File Format)

WMF (Windows Metafile)

WPG (Word Perfect Graphics File)

XBM (X Windows system bitmap, black and white only)

XCF (GIMP image)

XPM (X Windows system pixmap)

XWD (X Windows system window dump)

YUV (Color Space Pixel Format)

VIDEO

3GP (3GP Video File)

ASF (Advanced Systems Format Media)

AVI (Microsoft Video for Windows Movie)

FLV (Flash Video File)

IVR (Internet Video Record File)

MOV (QuickTime Movie)

MP4 (Mpeg-4 Video)

MPEG (MPEG Video File)

MPG (MPEG Video File)

RM (RealMedia File)

RV (Real Video File)

SWF (Shockwave Flash)

WMV (Windows Media Video)

ARCHIVE

7Z (7Z File)

ACE (ACE File)

ARJ (ARJ File)

BZ2 (BZ2 File)

BZA (BZA File)

CAB (CAB File)

GZ (GZ File)

RAR (RAR File)

TAR (TAR File)

TGZ (TGZ File)

YZ1 (YZ1 File)

ZIP (ZIP File)