In theory, there is no limit.
In practice, IE imposes a limit of 2,083 bytes.
Because nobody could need more than 640k. :-)

Alun Harford

From RFC 2068 http://www.faqs.org/rfcs/rfc2068.html
<quote>
Note: Servers should be cautious about depending on URI lengths
above 255 bytes, because some older client or proxy implementations
may not properly support these lengths.
</quote>

   - Oliver

The relevant RFCs require browsers and servers to support URLs of at least
255 characters. While this isn't very much, in practice most browsers and
servers will handle much longer.

-- Adam Maass

   suneet> Hi, Can anyone tell me what is the maximum length of URL I
   suneet> can have.

   suneet> See the problem is that I need to send request from JSP to
   suneet> JHTML and in my JHTML I'm not able to get the request
   suneet> parameters sent from the JSP.  Is there a way I can send
   suneet> it.

   suneet> One way I found that I can have parameters attached in the
   suneet> URL and send it across to JHTML, but I'm confused as to
   suneet> how much is the limit for those parameters that I can
   suneet> attach in the URL.

Internet Exploder limits a URL to 2048 bytes.  That is a browser
limitation.  On the server side, it varies and is configurable.  The
default configuration for Apache 2.x is 8190 bytes.  The default for
IIS 6.0 is 16K.  I have seen log file entries with nearly 10K chars,
so there are people out there creating ridiculously long strings.

http://httpd.apache.org/docs/2.2/mod/core.html#limitrequestline

Thanks.

mp