HTML URL Encoding Reference

8/12/2019 HTML URL Encoding Reference

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Previous Next Reference HTML URL EncodingReference

URL encoding converts characters into a format that can be transmitted over the Internet.

URL - Uniform Resource LocatorWeb brows ers request pages from web serversby using a URL.

The URL is the address of a web page, like: http://www.w3schools.com.

URL EncodingURLs can only be sent over the Internet using t he ASCII character-set.

Since URLs often contain characters outside the ASCII set, the URL has to be converted into a valid ASCII format.

URL encoding replaces unsafe ASCII characters with a "%" followed by two hexadecimal digits.

URLs cannot contain spaces. URL encoding normally replacesa spa ce with a + sign.

Try It YourselfIf you click the "Submit" button be low, the brow ser w ill URL encode the input before it is sent to the server. Apage a t the server will display the received input.

Hello Gnter Submit

Try some other input and click Submit again.

URL Encoding FunctionsIn JavaScript, PHP, and ASP there are functions that can be used to URL encode a string.

In JavaScript you can use the encodeURI() function. PHP has the raw urlencode() function and ASP has theServer.URLEncode() function.

Click the "URL Encode" button to see how the JavaScript function encodes the text.

Hello Gnter URL Encode

Note: The JavaScript function encodes space as %20.

URL Encoding ReferenceASCII Character URL-encoding

space %20

! %21

" %22

# %23

$ %24

% %25

& %26

' %27

( %28

) %29

* %2A

+ %2B

, %2C

- %2D

. %2E

/ %2F

0 %30

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http://w3schools.com/tags/tag_video.asphttp://w3schools.com/tags/tag_var.asphttp://w3schools.com/tags/tag_ul.asphttp://w3schools.com/tags/tag_u.asphttp://w3schools.com/tags/tag_tt.asphttp://w3schools.com/tags/tag_track.asphttp://w3schools.com/tags/tag_tr.asphttp://w3schools.com/tags/tag_title.asphttp://w3schools.com/tags/tag_time.asphttp://w3schools.com/tags/tag_thead.asphttp://w3schools.com/tags/tag_th.asphttp://w3schools.com/tags/tag_tfoot.asphttp://w3schools.com/tags/tag_textarea.asphttp://w3schools.com/tags/tag_td.asphttp://w3schools.com/tags/tag_tbody.asphttp://w3schools.com/tags/tag_table.asphttp://w3schools.com/tags/tag_sup.asphttp://w3schools.com/tags/tag_summary.asphttp://w3schools.com/tags/tag_sub.asphttp://w3schools.com/tags/tag_style.asphttp://w3schools.com/tags/tag_strong.asphttp://w3schools.com/tags/tag_strike.asphttp://w3schools.com/tags/tag_span.asphttp://w3schools.com/tags/tag_source.asphttp://w3schools.com/tags/tag_small.asphttp://w3schools.com/tags/tag_select.asphttp://w3schools.com/tags/tag_section.asphttp://w3schools.com/tags/tag_script.asphttp://w3schools.com/tags/tag_samp.asphttp://w3schools.com/tags/tag_s.asphttp://w3schools.com/tags/tag_ruby.asphttp://w3schools.com/tags/tag_rt.asphttp://w3schools.com/tags/tag_rp.asphttp://w3schools.com/tags/tag_q.asphttp://w3schools.com/tags/tag_progress.asphttp://w3schools.com/tags/tag_pre.asphttp://w3schools.com/tags/tag_param.asphttp://w3schools.com/tags/tag_p.asphttp://w3schools.com/tags/tag_output.asphttp://w3schools.com/tags/tag_option.asphttp://w3schools.com/tags/tag_optgroup.asphttp://w3schools.com/tags/tag_ol.asphttp://w3schools.com/tags/tag_object.asphttp://w3schools.com/tags/tag_noscript.asphttp://w3schools.com/tags/tag_noframes.asphttp://w3schools.com/tags/tag_nav.asphttp://w3schools.com/tags/tag_meter.asphttp://w3schools.com/tags/tag_meta.asphttp://w3schools.com/tags/tag_menu.asphttp://w3schools.com/tags/tag_mark.asphttp://w3schools.com/tags/tag_map.asphttp://w3schools.com/tags/tag_link.asphttp://w3schools.com/tags/tag_li.asphttp://w3schools.com/tags/tag_legend.asphttp://w3schools.com/tags/tag_label.asphttp://w3schools.com/tags/tag_keygen.asphttp://w3schools.com/tags/tag_kbd.asphttp://w3schools.com/tags/tag_ins.asphttp://w3schools.com/tags/tag_input.asphttp://w3schools.com/tags/tag_img.asphttp://w3schools.com/tags/tag_iframe.asphttp://w3schools.com/tags/tag_i.asphttp://w3schools.com/tags/tag_html.asphttp://w3schools.com/tags/tag_hr.asphttp://w3schools.com/tags/tag_hn.asphttp://w3schools.com/tags/tag_header.asphttp://w3schools.com/tags/tag_head.asphttp://w3schools.com/tags/tag_frameset.asphttp://w3schools.com/tags/tag_frame.asphttp://w3schools.com/tags/tag_form.asphttp://w3schools.com/tags/tag_footer.asphttp://w3schools.com/tags/tag_font.asphttp://w3schools.com/tags/tag_figure.asphttp://w3schools.com/tags/tag_figcaption.asp


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http://w3schools.com/tags/tag_wbr.asp


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Previous Next Reference

%FA

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%FF

URL Encoding ReferenceThe ASCII device control characters %00-%1f were originally designed to control hardware devices. Controlcharacters have nothing to do inside a URL.

ASCII Character Description URL-encoding

NUL null character %00

SOH start of header %01

STX start of text %02

ETX end of text %03

EOT end of transmission %04

ENQ enquiry %05

ACK acknowledge %06

BEL bell (ring) %07

BS backspace %08

HT horizontal tab %09

LF line feed %0A

VT vertical tab %0B

FF form feed %0C

CR carriage return %0D

SO shift out %0E

SI shift in %0F

DLE data link escape %10

DC1 device control 1 %11




NAK negative acknowledge %15

SYN synchronize %16

ETB end transmission block %17

CAN cancel %18

EM end of medium %19

SUB substitute %1A

ESC escape %1B

FS file separator %1C

GS group separator %1D

RS record separator %1E

US unit separator %1F
http://w3schools.com/tags/ref_language_codes.asphttp://w3schools.com/tags/ref_symbols.asp


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