Simple WebSocket Client

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Construct custom Web Socket requests and handle responses to directly test your Web Socket services.

Latest reviews

• (2022-10-20) Michael Fletcher: I can test my websocket using swcat and it works fine but with this I get "undefined", useless. Flat out doesn't do the job. It's probably spyware.
• (2022-08-06) Terence Lau: Very useful tool. Thanks to the author! A suggestion by the way: Hope to change the width of the URL input box to 90% instead of the current 225px. This makes it easier to modify the URL.
• (2021-03-30) Heine Ken Millinge: Does not detect when server closes connection...
• (2020-12-16) Carlos Fau: It connected but the text sent to the server was in a incorrect encoding. The text was encoded as two byte characters, the receiver buffer had zero bytes after each text byte. The reception of messages worked ok.
• (2020-02-04) 시금치맨: very nice goooooooooooooood
• (2019-12-04) Geraldo Eloi: Simples e útil. Deixa mais clara a situação da conexão e mantêm um histórico das conexões. Poderia ter uma interface menos arcaica.
• (2019-09-26) 1) Text areas were poorly laid out and not usefully configured (e.g., no text wrapping, no ability to have multiple texts to send without awkward copy/paste) 2) Sometimes (around 10-20% of the time) when you click the Send button it shows up as sent (in red text below the button), but Wireshark would show that it hadn't sent a damned byte since the protocol upgrade. THIS WASTED A DAY for me, and will for you, too. Normally one has to TRY to make something worse than useless, but it looks like they succeeded.
• (2019-08-18) Jason Hughes: Super helpful for testing server code.
• (2019-07-06) Mohammad Gholami: Great and easy to use extension
• (2019-05-29) Don Grasberger: Simple. Exactly what I was looking for.
• (2019-03-14) Rıza Sabuncu: Birader cok güzel tool yazımşssın da biraz arayüze kas allah için ya, valla içim sıkılıyor daralıyorum abi
• (2019-03-12) Eric Lin: Easy to use. Nice shot!
• (2019-02-28) Works ok but not sure why devs insist on using tiny unsizable text boxes when there is plenty of real estate. A button to copy the log to clipboard would be useful.
• (2019-01-09) Philipp Bergamin: Does what it should
• (2018-11-10) Nick Spreen: No Cookie or other headers supported. Cannot be used for authentication.
• (2018-11-06) 20kg zuviel ich trag bauchfrei: Doesnt work properly.
• (2018-08-17) Adam S: this saved me a load of time testing endpoints. very useful tool for testing local environments and production live site environements
• (2018-05-14) alex basov: Клиент так себе. - Не обрабатывается ошибка подключение. Если соединение разорвано, то это не как не видно. - Очень маленькое поле для ввода URL. - Не хранит историю url и пакетов
• (2018-04-07) Filip Shulevski: Does the Job!
• (2018-01-18) Jose Monzon: Does not support Sec-WebSocket-Protocol header
• (2017-03-24) Shenal Senarath: Gets the work done but need a better UI UX
• (2017-03-15) John kariru: just works....
• (2017-03-08) vbnetvbnet: Very nice!
• (2017-01-27) Botino: It doesn't work !
• (2017-01-04) I have 2 complaints: - Why does it need to know my browsing-history - I can't subscribe to any topic
• (2016-12-05) Martin Ždila: I wasn't able to specify subprotocol.
• (2016-11-14) Martin Spizman: Very basic yes, but very useful and dependable.
• (2016-09-29) Sergey Balykov: Bad layout.
• (2016-09-12) J dP: Text boxes are too small and the output text box has no horizontal scroll bar, or text wrapping. It also truncates data if its too large which is a pain. Would be much better if it could save history of requests.
• (2016-08-01) Neil Kolban: Just what I needed. Would like the URL entry field to be wider.
• (2016-07-04) 닉챠갈: 테헷
• (2015-11-02) JCDenton Alex Melyon: Было бы неплохо если бы он восстанавливал данные полей и их размеры.

Latest issues

• (2021-06-24, v:0.1.3) Simon Rabich: Scrap
  Can i scrap data from the response in Web Socket Stream Extension ??
• (2020-05-22, v:0.1.3) JSL: Query for Privacy Policy
  Hello Team. Could we share the guide about Privacy Policy about using this program?? It would be thankful, if you would have any guide about how the data is protect and used. Thanks & best regards.
• (2020-05-22, v:0.1.3) JSL: Could you give me a favor about license?
  Hello team. Could I know if there's any license cost to keep using this program via Chrome Add-ons? It would be thankful, if you please confirm the license query. Thanks & best regards.
• (2020-03-23, v:0.1.3) Seth: Connecting to ipV6
  Hi there, great extension, been happily using it for years I've changed from ipV4 to ipV6 I'm stuggling to connect I try: ws://[ipv6address%netID]:port Uncaught DOMException: Failed to construct 'WebSocket': The URL 'ws://[X::X:X:X:X%4]:1234' is invalid. With VNC I use [X::X:X:X:X%4]:1234 and it works but not with websocket hopefully you can help me thank you for a great extension, will be using it for many years to come still
• (2019-10-08, v:0.1.3) Samuel Thompson: input width
  I have REALLY long connection strings. Can you change the width from 225px to: width: calc(100% - 100px); on the button: <button id="connectButton" style="display: none;">Open</button> that way it is full width and it still shows the connect button on the same line.
• (2018-09-11, v:0.1.3) C. P.: History Access
  Why does this need access to my history!?
• (2018-06-16, v:0.1.3) Tony Kenny: undefined message
  Having connection problems but the pop up message just says "undefined". This is really not helpful.
• (2018-06-06, v:0.1.3) Debashis Deb: Why asking to access browser history?
  There's really no reason to ask
• (2018-04-04, v:0.1.3) Raffaela Serventi: Why asking to access browser history??
  There's really no reason to ask
• (2018-03-30, v:0.1.3) Mike King: asking for browser history?
  No thanks, no reason for you to get my browser history. Bad behaving app.
• (2018-03-16, v:0.1.3) Lestat Channel: Headers
  Add custom headers in request
• (2018-02-08, v:0.1.3) Resizable message log frame
  It is possible to resize the log window? Thank you.
• (2017-10-03, v:0.1.3) Trevor Pace: specify a Protocol
  How do I specify “ remotecontrol ” as Sec-WebSocket-Protocol
• (2017-09-05, v:0.1.3) Tim Tennant: Websocket idle timeout
  How long does it take for the websocket client to timeout when idle (if at all). Is this configurable? Also is there a way for the client to report when the server has terminated the connection?