Best Addon Plugin Products in 2026

EspoCRM is open source CRM (Customer Relationship Management) software that allows you to see, enter and evaluate all your company relationships regardless of the type.

Key EspoCRM features:

Sales management Marketing Automation Customer Support Inventory Managment

Open Source free

InboxAgent uses AI to read your shared mailboxes, like info@ and sales@, plus everyone's own inbox, on Microsoft 365, Gmail, Zoho Mail or IMAP. It finds the sales leads and gives each an owner on a board. Never sends from your mailbox.

Key InboxAgent features:

Triage-based inbox system AI Classification Pricing Model Noise Filtering

Try for free paid Free Trial $20 / Monthly Sponsored

A design linting plugin for Figma.

Key Design Lint features:

Improved Consistency Efficiency Boost User-friendly Interface Team Collaboration

Instantly find your shared PowerPoint slides.

Key TeamSlide features:

Centralized Library Seamless Integration Improved Collaboration Brand Consistency

Edit Word, Excel and PowerPoint files right inside EspoCRM with an embedded ONLYOFFICE editor. No downloads, with full record and field-level access control.

paid $199 / Annually (1-year term, per EspoCRM instance)

Strip colour from text pasted into EspoCRM rich-text fields, so dark-theme text never reaches a recipient unreadable. Remove Formatting needs no setup.

paid $49 / Annually (1-year term, per EspoCRM instance)

Improve your online community with BBP Core, the powerful & customizable bbPress WordPress plugin. Enables more control over your forums & discussions.

Key BBP Core features:

bbPress Forum Extension Addon solved topics, private replies, forum statistics etc. Custom Admin UI Forum Creation & Deletion

freemium $39 / Annually

Add a role to every relationship in EspoCRM. Entity Relay puts role dropdowns on any many-to-many link and carries roles into your email and PDF templates.

paid $99 / Annually (1-year term, per EspoCRM instance)

Timesaving PowerPoint add-in with 200+ features. Create, refine and reuse faster in PowerPoint - boost your productivity. Free 30-day trial.

Key PPT Productivity features:

Time-saving PowerPoint add-in Enhanced slide formatting tools Agenda and table of contents automation Tidy and clean-up features

paid Free Trial $179 / Annually (Team/ enterprise discounts available)

Your full-time design assistant.

Key Design Buddy features:

User-Friendly Interface Versatile Design Tools Affordable Pricing Collaborative Features

paid Free Trial $5 / Monthly (50 reviews)

See who actually uses your EspoCRM, what they do in it and where the process breaks. Vantage records it server-side, with no keystroke or screen capture.

paid $149 / Annually (1-year term, per EspoCRM instance)

Two-way Google Drive sync for EspoCRM: mirror every Document to a relationship-aware Drive folder, edit in Drive, and have changes flow back into the CRM.

paid $149 / Annually (1-year term, per EspoCRM instance)

No-Limit AI Solutions for Your Spreadsheets!

Key SolveGPT features:

User-Friendly Interface High-Quality Solutions Multidisciplinary Support Community Driven

freemium $20 / Annually

Attach the right file in two clicks. Insert Related adds a scoped 'Insert Related Document' action to EspoCRM emails, stream posts and the knowledge base.

paid $99 / Annually (1-year term, per EspoCRM instance)