Get file size without downloading

Get file size from URL (in bytes) without downloading it. 0 dependencies. Returns Promise with bytes on success. const ufs = require ("url-file-size") ; ufs ("bltadwin.ru"). then (console. log) // catch (console. error) ;.  · #!/usr/bin/env python # display URL file size without downloading import sys import requests # pass URL as first argument response = bltadwin.ru(bltadwin.ru[1], allow_redirects=True) size = bltadwin.ru('content-length', -1) # size in megabytes (Python 2, 3) print('{: size in megabytes (f-string, Python 3 only) # Reviews: 1.  · In general, we may not know the filesize before actually downloading. You can, however, pass the -j option and look at the filesize or filesize_approx fields in the result: Note that support for this feature totally depends on the site, and in some cases, even on the format you're picking (with -f).

If you're willing to download the first 24 bytes of each file, then this function (mentioned in johnteslade's answer to the question you mention) will work out the dimensions.. That's probably the least downloading necessary to do the job you want. import urllib2 start = bltadwin.run(image_url).read(24). For each URL, I need to get the corresponding file size, without downloading the file (it could be a large file). How can I do it in Javascript? Thanks! Tags: javascript, xmlhttprequest, cors. User rating: Edited Jul 24'15 at alex. User rating: Created Jul 24'15 at Get File Size is an Internet Explorer add-on that allows you to find out the size of a file before downloading it. Get File Size does not require any special skills, just right-click the link to a file and select Get File Size, the program will immediately show you the size of the file.

function getFileSize(url) { var fileSize = ''; var http = new XMLHttpRequest(); bltadwin.ru('HEAD', url, true); // true = Asynchronous bltadwin.ruystatechange = function() { if (bltadwin.rutate == bltadwin.ru) { if (bltadwin.ru === ) { fileSize = bltadwin.ruponseHeader('content-length'); bltadwin.ru('fileSize = ' + fileSize); // // ok here is the only place in the code where we have our request result and file size. It's a dict, so to get the size of the file, you do bltadwin.ru()['Content-Length'] print bltadwin.ru()['Content-Length'] And to get the size of the local file (for comparison), you can use the bltadwin.ru() command: bltadwin.ru("/the/local/bltadwin.ru").st_size. I found the solution on this site to work well: import urllib import ImageFile def getsizes (uri): # get file size *and* image size (None if not known) file = bltadwin.run (uri) size = bltadwin.ru ("content-length") if size: size = int (size) p = bltadwin.ru () while 1: data = bltadwin.ru () if not data: break bltadwin.ru (data) if p.