Instant Messenger Plugin

Osclass messenger plugin enchance communication between customer and seller and provides easy way to ask & answer questions before purchase. User will receive email notification about new message and can read it in it's user account.

Major release v2.0.0

messages loaded via ajax in thread page, no need to reload
brand new design
many fixes

Messenger functionality

registered & non-registered users can contact sellers via personal message
each message is part of conversation - thread
conversation groups messages related to same item or same question
users can create as many conversations as they need and messages as well
attachments can be uploaded to messages
add header link to show latest & unread messages
non-logged in users can send & reply to personal messages without need of register/login

Replace contact seller functionality

functionality of contact seller form can be replaced by messenger plugin where seller will not receive email, but will receive personal message
if seller is not registered, it is required to register on your site to be able to access message. This can help to increase registrations on your osclass site
there is no need to modify any theme files for this, everything is handled by messenger plugin on background

Plugin does not change design and look of contact seller block/form, it just replace email sending with message sending.

Smart notifications on new message

it is very important to be able to handle email notifications on new messages
with messenger plugin, every user can set if he wants to be notified on messages in certain thread or not
admin can globally set, if users will be notified by email when:
- new message is received no matter if previous was read
- new message is received and previous message in same thread was already read
especially with second setting, that users are notified again just in case they do not have any unread messages in thread, there will be no spam created by notifications (sometimes happen that user send many messages in very short time. Sending email notification after each message would just annoy your customers)

Flag threads, set notifications for each thread

usually there are some conversations that user like to mark/flag so it is easy to identify them
such conversations use to be important or has higher value for users
messenger plugin allows users to flag their conversation in case thread is important for them

Send attachments in messages

nowadays attachments are very required to be supported by messenger plugin
instant messenger plugin allows to upload 1 attachment per message, to improve communication betweeen customer and seller
admin can set what is maximum size of each attachment, what extensions are allowed to be sent

Backoffice interface of plugin

replace contact seller functionality with instant messenger plugin
set if users are notified only once when there is new message in thread until previous messages are read
hook Send message button to item page using hook item_detail (no need to modify theme files)
enable attachments on messages
set allowed file extensions on attachment files
set maximum file size for attachments
allow users to remove their messages (sometimes it is required to not allow message removal, i.e. in case messenger plugin is used as support tool)
check conversations and messages of users to make sure no spam or abusive content is not send

Maintenance - keep your Osclass clean

conversations maintenance is a must to avoid database overflow (and reduce attachment space)
admin can remove conversations with no activity in certain number of days (i.e. 360 days)
admin can remove attachments on messages older than certain number of days (i.e. 360 days)

Enhance your classified ad website and get Instant Messenger plugin now!

Last update of product description has been on 2. October 2025

Available translations

Product features and functionality

RTL ready (Arabic, Hebrew, ...)

Basic documentation included

Add back office functionality

Add front office functionality

Simple installation

Coding skills NOT required

Theme modifications NOT required

Use hooks for theme integration

Coding skills recommended

No dependency on 3rd party services

MB Themes

Premium developer

221 products

View seller profile

Product support includes

Direct support from Adrian Brezak, founder of MB Themes and developer maintaining these products in production

12 months access to support and latest updates

Support can be extended anytime for 35% of base price (+12 months)

Availability of seller to answer questions

Answer technical queries about product features

Assistance with reported bugs or issues

Help with installation in case there is problem

Product in English language (other locales provided by community)

Proven support scale: 9,200 resolved tickets and 47,000 support messages

Long-term maintenance track record: 2,200+ updates released across products

Updates are based on customer support cases, Osclass core changes, PHP/MySQL updates, and real-world usage feedback

Public support reputation: see verified customer reviews on Trustpilot

Support does not include

Customization service, custom work or feature requests

Support on free/gratis plugins delivered with premium themes

Installation service

Translation and localization services

Support quality, trust and engineering proof

Seller updated this product 54 times

Seller rating is 4.7 of 5 - Excellent (583 reviews)

Member since 2017

Support available in:

English

Czech

Slovak

This product is not compatible with WordPress. All our themes and plugins work exclusively with Osclass.

✨ Ask Fred – Instant AI Support for Osclass Go to support forums Download osclass

Frequently asked questions

Question: What does Instant Messenger Plugin do in a real classifieds workflow?

Answer: Osclass messenger plugin enhance communication between customer and seller and provides easy way to ask & answer questions before purchase.

Question: When is Instant Messenger Plugin the right choice?

Answer: User will receive email notification about new message and can read it in it's user account.

Question: How should Instant Messenger Plugin be set up before launch?

Answer: Enable core options first, then validate main user flow and admin settings save cycle before enabling advanced features The setup details for Instant Messenger Plugin are different in production.

Question: What should be verified after Osclass updates when using Instant Messenger Plugin?

Answer: Validate plugin behavior after Osclass core updates and PHP upgrades, then review changelog-dependent configuration changes The setup details for Instant Messenger Plugin are different in production.

Question: Can Instant Messenger Plugin affect page performance?

Answer: Monitor load time and database queries on pages affected by plugin hooks, then optimize configuration based on real traffic patterns The setup details for Instant Messenger Plugin are different in production.

Question: What are common issues with Instant Messenger Plugin?

Answer: Common causes are missing prerequisites, cached outdated settings, and conflicts with custom forms or third-party overrides The setup details for Instant Messenger Plugin are different in production.

Question: How should updates of Instant Messenger Plugin be handled safely?

Answer: Update in controlled steps, retest primary business flow, and keep rollback package ready before production deployment The setup details for Instant Messenger Plugin are different in production.

Question: Does Instant Messenger Plugin require ongoing manual maintenance after setup?

Answer: Projects with stable release process and clear operational ownership usually get the best long-term results.

Changelog - Product updates history

Version 2.7.1 released on 2026-05-29

Fixed minor issues on create thread page and improved UX.
Fixed bug when create thread page was skipped while creating a new thread and another thread existed.

Version 2.7.0 released on 2026-05-15

Major update: Plugin UI has been modernized and improved.
Optional item-less threads and a single conversation per user pair when enabled - means it is possible to start conversation between 2 users directly, without need of item -> placement of contact button to user public profile page.
Contact seller (listing) and contact user (public profile) buttons use separate hook settings, with clearer admin labels and explanations.
Deferred notification emails use cron_minutely
admin help links to the Osclass cron setup guide.
Message list UI refreshed: sent/received bubbles, read-check color, incoming bubble corner, related listing strip.
Tooltips and alt text on avatars (composer, thread list, message rows).
Attachments migrated and stored under oc-content/uploads/instant_messenger/{thread_id}/.

Version 2.6.2 released on 2026-01-16

Minor fix related to wrong error message.

Version 2.6.1 released on 2026-01-15

Fix for im_contact_button function to be able to return link only.

Version 2.6.0 released on 2026-01-15

Major update: Default contact seller button has been changed.
Button now use more modern and fresh look with new icon and styling.
Color on button use theme colors or default Osclass color.
Button is not hooked automatically to item_detail! This setting has been removed.
There is new option - Contact Button Hooks - in plugin settings, where is possible to specify one or more hooks where to place button (default: item_contact or item_detail).
New setting - auto-generate converstation title.
Conversation title is not required anymore. If user does not specify conversation title, it's going to be automatically generated by plugin in form "Inquiry: ".
Numerous functions in plugin has been optimized and modernized.

Version 2.5.4 released on 2026-01-08

When one of 2 participants in thread are blocked by each other (one user blocked another or vice versa), message form is hidden and error message is shown in thread.
When message contains contact info (mail, phone, whatsapp, ...), warning message is shown to receiving user to watch out.

Version 2.5.3 released on 2025-11-20

Fixed minor php issues.

Version 2.5.2 released on 2025-11-13

Fixed possible issues (error notices) on create thread page, if item of thread does not exists.

Version 2.5.1 released on 2025-08-25

User avatar is now visible in send message form.
It is now possible to enable avatar generation based on user initials/name, so each user has different avatar (until name is different).

Version 2.5.0 released on 2025-08-25

Fixed bug when unlogged user could reply within thread.

Version 2.4.9 released on 2025-08-25

Added recipient mail in threads page on mobile devices.

Version 2.4.8 released on 2025-07-14

Minor html corrections.

Version 2.4.7 released on 2025-07-02

Fixed incorrect count of messages sent/users contacted in limits.

Version 2.4.6 released on 2024-11-19

Improved error handling on create threads page.

Version 2.4.5 released on 2024-11-18

Fix on previous update condition.

Version 2.4.4 released on 2024-11-18

Improved error message on create thread page.

Version 2.4.3 released on 2024-09-13

Small bug fixes.

Version 2.4.2 released on 2024-03-01

Design improvements in user account.
Small fixes.

Version 2.4.1 released on 2024-02-12

Improved thread title when created automatically as item contact form replacement.
Enhanced mail block for item contact form using new filters (Osclass 8.3+).

Version 2.4.0 released on 2024-02-07

Major update: Added new feature that allows to control number of messages sent by user.
Target of this feature is to limit messages sent by new customers - potentional spammers.
It often happen that user sent hundreds of messages to other users until admin realize and block such user.
Now it is possible to set maximum number of MESSAGES and maximum number of USERS contacted by given customer in defined number of HOURS.
Besides that, it's possible to drop this limit on users, those already sent at least defined number of MESSAGES and contacted defined number of USERS and are registered for at least defined number of DAYS.
If user fall under limits, current "messages usage" is shown to user in threads section of user account.

Version 2.3.4 released on 2024-02-06

It is now possible to hook "Messenger" button/link to header from backoffice, using Osclass hooks 8.2

Version 2.3.3 released on 2023-12-19

Added public profile URL (clickable link) into threads list and messages - you can now click on user profile picture to get into public profile page.
Other small improvements.

Version 2.3.2 released on 2023-02-28

Important: Native RTL support added directly to plugin (will not be part of themes anymore).
To identify RTL text direction, plugin detects if "dir" attribute on "html" tag is set to "rtl" (html[dir="rtl"]).

Version 2.3.1 released on 2022-05-18

Fixed bug when it was possible to create thread by blocked user.

Version 2.3.0 released on 2022-01-25

Major update: Removed old redundant fonts and styles.
Added option for users to remove whole threads (if admin enable it).

Version 2.2.4 released on 2021-11-18

Pagination of threads has been redesigned and is more compact now.

Version 2.2.3 released on 2021-11-15

Improved insertMessage function for Rest API plugin (now return ID of inserted message)

Version 2.2.2 released on 2021-10-04

Blocked users email is now masked and GDPR compliant.

Version 2.2.1 released on 2021-08-09

Fixed bug with missing function

Version 2.2.0 released on 2021-08-05

Major update - adjusted design to ultimately match into different theme design
update function to retrieve user picture
new default user picture

Version 2.1.4 released on 2021-07-23

Reversal of previous update, fixed minor problems.

Version 2.1.3 released on 2021-07-22

When new message is loaded via chat, no email notifications will be triggered by plugin

Version 2.1.2 released on 2021-05-21

Minor fixes and improvements

Version 2.1.1 released on 2021-01-19

Notices fixes

Version 2.1.0 released on 2021-01-19

PHP 8.0 compatibility update, additional minor fixes

Version 2.0.2 released on 2020-03-23

Fixed missing user message delete button

Version 2.0.1 released on 2020-03-15

Minor compatibility improvements

Version 2.0.0 released on 2020-03-05

Major release: ajax messages loader, new layout, hidding old messages

Version 1.4.0 released on 2020-02-20

Updated for better integration to gamma theme

Version 1.3.1 released on 2019-11-11

Several updates to support Osclass 3.9

Version 1.3.0 released on 2019-06-24

Admin can not decide if communication will be enabled for non-logged users or not

Version 1.2.2 released on 2019-03-26

Plugin now does not exit sending message if email template is missing.

Version 1.2.1 released on 2019-01-06

Fixed design issue with theme

Version 1.2.0 released on 2019-01-06

Added support for Avatar Osclass Plugin to show profile pictures in thread

Version 1.1.3 released on 2018-09-25

Small issue fixed with creating new column in osclass table

Version 1.1.2 released on 2018-09-24

locales update

Version 1.1.1 released on 2018-09-24

Update to work with make offer plugin - offer to instant message

Version 1.1.0 released on 2018-08-27

Fixed missing strings in translation file

Version 1.0.16 released on 2018-07-13

fixed problems with user ban

Version 1.0.15 released on 2018-07-11

fixed "sent to" name

Version 1.0.14 released on 2018-07-10

fixed block user functionality

Version 1.0.12 released on 2018-01-08

fixed issue with removing banner users

Version 1.0.11 released on 2017-11-29

updated product key

Version 1.0.10 released on 2017-11-16

initial version

View all products updates

Product rating: 5.0 - Excellent, based on 17 reviews

Verified & Genuine Reviews

All reviews on OsclassPoint come from real customers who have purchased the product. Only verified buyers can leave a rating or review.

To maintain quality and accuracy, every review is moderated before being published.

Excellent by Neo on 23. Oct 2025

5.0 - Excellent

No comment

Review by Kostiantyn on 24. Feb 2025

5.0 - Excellent

Very good and useful plugin. Is there any way to add emoji support?

MB Themes response:

Thanks for feedback! Osclass does not support emoji as of now.

Review by AutoDivers on 4. Jul 2024

5.0 - Excellent

A plugin that pleases the user!

MB Themes response:

Thanks for sharing your experience!

The best plugin Instant Messenger by maramures24 on 3. May 2023

5.0 - Excellent

I think that . that this plugin helps a lot . users communicate much more easily. from me it has 10 stars

MB Themes response:

Thanks for feedback

Great plugin! by Ales Tomazic on 29. Nov 2022

5.0 - Excellent

Just what I was looking for. Any questions I have are answered in minutes. Blazing fast support.

MB Themes response:

Thanks!

Verry good by yvelef on 2. Feb 2022

5.0 - Excellent

Wonderfull Scripts

MB Themes response:

Thank you!!

Communication improvement for visitors by MvdO79 on 21. Aug 2021

5.0 - Excellent

With this plugin users can communicate more personally, lot's of options, really makes your site more engaging.

MB Themes response:

Thanks for your kind words and feedback

Review by Marc Windey on 1. May 2021

5.0 - Excellent

Very nice and practical script for a fair price. Easy to install and adapt to your needs. A small thing i see as the only downside is: That when a person gives rating, that the statement cannot be changed later. Suppose you buy something and you are not satisfied from the article, but later on you buy something else from the same user and you are very satisfied ...ou can no longer rate or change the user as a 5 star user .... An idea to possibly take with you for a next update? Furthermore, it works like a charm

MB Themes response:

Thanks Marc, rating is not available in this plugin,maybe you meant different one

Review by maroc norte on 20. Mar 2021

5.0 - Excellent

im very happy for this plugin

Fácil instalacion by Inmo Sistem on 8. Aug 2020

5.0 - Excellent

Estupendo plugin fácil de instalar no te puede faltar en tu sitio OSClass

Nice plugin by Sunday Ajani on 10. Dec 2019

5.0 - Excellent

i love the plugin. But i also want to suggest that dev should include a sound notification.

MB Themes response:

Thanks for your review on messenger plugin for osclass, we will consider your inputs in next update!

Excelent plugin!!! Wors Great by João Carrolo on 25. Sep 2018

5.0 - Excellent

Only some sugestions.. 1 Add recaptcha in Hook Button to Item Page, to avoid spam.. 2. When the people reply to the message add the block button (Allways visible) 3. (User message center) - add a timestamp when the message was readed, this is very usefull to know if the user read the message and when. 4. (Admin Dashbioard) - A page with stats about whole site stats regarding the number of messages sent and received

MB Themes response:

Hello Joao, thanks for your feedback, we will consider this in next updates!

便利すぎます！ by 546 451 on 19. Jun 2018

5.0 - Excellent

価格も安く、最高です！ありがとうございます。

MB Themes response:

Thanks for your review, we really appreciate it!

Nice surprise :) by Andrzej Ignatowicz on 24. May 2018

5.0 - Excellent

Better than expected

Big thanks to all members of the dev team for excellent effort. Good value for reasonable price.

MB Themes response:

Thank you, we are happy to work with you

I Like this IM plugin by Steven on 26. Mar 2018

5.0 - Excellent

Great, works perfect.

MB Themes response:

Thanks!

Excellent by atba2012 on 10. Jan 2018

5.0 - Excellent

Great plug-in! By itself, of course, a little work needs to be done, but for this there is a support service, whose work can be assessed at the highest level! Thank you for the quality and operational work)))

MB Themes response:

Thanks for your support

Sumptuously by Алексей on 14. Dec 2017

5.0 - Excellent

No comment

Add a new review

€ 33.99

5.0 - Excellent Based on 17 customer reviews

Created by best developers

Regular updates and bug fixes

Premium support services

Top rated product

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Price is in Euros

MB Themes

Adrian Brezak is the founder of MB Themes, specializing in Osclass development, marketplace SEO, performance optimization, and payment integrations, with 12 years of experience in Osclass. He has delivered 2,200+ product updates and resolved over 9,200 support tickets throughout his career. See verified customer reviews on Trustpilot

Product technical details

Product version: 2.7.1

Last update:

Osclass support: 3.0 or higher Download osclass

Product rating: 5 of 5 - Excellent

Published on: 16. Nov 2017

Folder name: instant_messenger

Instant Messenger Plugin

Messenger functionality

Replace contact seller functionality

Smart notifications on new message

Flag threads, set notifications for each thread

Send attachments in messages

Backoffice interface of plugin

Maintenance - keep your Osclass clean

Available translations

Product features and functionality

Product support includes

Support does not include

Support quality, trust and engineering proof

Support available in:

Frequently asked questions

Changelog - Product updates history

Product rating: 5.0 - Excellent, based on 17 reviews

Excellent by Neo on 23. Oct 2025

Review by Kostiantyn on 24. Feb 2025

MB Themes response:

Review by AutoDivers on 4. Jul 2024

MB Themes response:

The best plugin Instant Messenger by maramures24 on 3. May 2023

MB Themes response:

Great plugin! by Ales Tomazic on 29. Nov 2022

MB Themes response:

Verry good by yvelef on 2. Feb 2022

MB Themes response:

Communication improvement for visitors by MvdO79 on 21. Aug 2021

MB Themes response:

Review by Marc Windey on 1. May 2021

MB Themes response:

Review by maroc norte on 20. Mar 2021

Fácil instalacion by Inmo Sistem on 8. Aug 2020

Nice plugin by Sunday Ajani on 10. Dec 2019

MB Themes response:

Excelent plugin!!! Wors Great by João Carrolo on 25. Sep 2018

MB Themes response:

便利すぎます！ by 546 451 on 19. Jun 2018

MB Themes response:

Nice surprise :) by Andrzej Ignatowicz on 24. May 2018

MB Themes response:

I Like this IM plugin by Steven on 26. Mar 2018

MB Themes response:

Excellent by atba2012 on 10. Jan 2018

MB Themes response:

Sumptuously by Алексей on 14. Dec 2017

Product technical details

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