Marker.io
Marker.io is a cloud-based SaaS platform that captures website visual feedback, bug reports, and annotations via an embeddable widget, routing structured tickets to developer issue trackers such as Jira, GitHub, and Linear for QA, agencies, ecommerce, and enterprise teams.
- Company typePrivate
- Founded2015
- HeadquartersBrussels, Belgium
- Headcount11–50
- GTM typeB2B
- OfferingSoftware
What Marker.io does
Marker.io is a cloud-based SaaS platform that enables websites teams to capture visual feedback, bug reports, and website annotations directly on live or in-production web pages, then route them as structured tickets to developer issue trackers. The product is built around an embeddable widget (JavaScript snippet, browser extension, WordPress plugin, or NPM SDK) that auto-captures screenshots with annotations, console logs, network requests, browser/OS metadata, and optional session replay video. The platform is positioned for QA testers, project managers, agencies, ecommerce teams operating multiple sites, and enterprise buyers with compliance requirements; named customers include L'Oréal, Fujitsu, Amgen, Patreon, Cadillac Fairview, FantPros, and Mantra Health across healthcare, retail, manufacturing, real estate, and SaaS verticals.
The underlying architecture is a single widget technology shared across all distribution surfaces, with deep two-way integrations into more than 20 project management and issue tracking systems including Jira, GitHub, GitLab, Linear, Azure DevOps, Bitbucket, Asana, ClickUp, Monday.com, Trello, and Slack. Differentiated layers include Session Replay (video replay of user actions leading to a bug), Data Masking (PII obfuscation for regulated environments), Workspace Analytics (resolution performance), an AI features module (translation, rewrite, title generation), and the Marker.io MCP Server, which exposes captured bug context to AI agents such as Claude, Cursor, and Windsurf. Infrastructure runs on ISO 27001-certified AWS in Ireland/EU, with Cloudflare WAF, SOC 2 Type II certification, and GDPR-compliant data residency.
The business model is a tiered SaaS subscription starting at $39 per month with a 15-day free trial and unlimited projects across all plans, distributed through a product-led growth motion (self-serve signups, browser extensions, WordPress plugin marketplace, NPM package) complemented by an enterprise sales motion for Custom plans that include SSO, audit logs, and Data Masking. The company reports 3,000+ active teams and over 3.8 million issues captured to date. Founded in 2015, registered as Marker.io SRL in Brussels, Belgium, the company is privately held, remote-first across Brussels and Amsterdam, and recently completed a March 2024 funding round led by Polychrome following an earlier 2016 round from LeanSquare.
Marker.io firmographics
Firmographics- Name
- Marker.io
- Legal name
- Marker.io SRL
- Website
- https://marker.io
- Company type
- Private
- Founded year
- 2015
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Marker.io is a cloud-based SaaS platform that captures website visual feedback, bug reports, and annotations via an embeddable widget, routing structured tickets to developer issue trackers such as Jira, GitHub, and Linear for QA, agencies, ecommerce, and enterprise teams.
- Ownership category
- akta.pro rank
Marker.io industry classification
Industry- Product category
- Bug Reporting and Website Feedback Software
- NAICS
- Web Search Portals and All Other Information Services (51929)
- SIC
- Services-Computer Programming Services (7371), Services-Computer Programming, Data Processing, Etc. (7370)
- akta.pro primary industry
- Testing, Automation, Crash Reporting & Telemetry SDKs (MPAFAFAM)
- akta.pro secondary industry
- API Documentation & Developer Portals (BPAMAOAH)
Keywords
Where Marker.io is headquartered
LocationHeadquarters
- HQ city
- Brussels
- HQ country
- Belgium
- HQ region
- Europe
Offices1 record
Markets served
Marker.io business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Marketing or Sales, Infrastructure, Operations
Revenue model
- SaaS Subscription: Subscription-based pricing with tiered plans starting at $39/month. Includes 15-day free trial. All plans include unlimited projects. Revenue derived from monthly or annual subscriptions.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Monthly | Entry-level plan for small teams starting at $39/month |
Go-to-market motion2 records
Distribution channels7 records
Marketing channels10 records
Marker.io product offering
Product offeringCore offering
Marker.io provides a cloud-based website feedback and bug reporting SaaS platform that lets teams capture visual annotations, screenshots, and bug reports directly on live web pages via an embeddable widget, browser extension, or JavaScript SDK. The platform automatically attaches technical context such as console logs, network requests, and session replays to each report, and routes issues through two-way integrations with 30+ project management and issue tracking tools.
Product overview
Marker.io is a unified website feedback, bug reporting, and user acceptance testing (UAT) platform. The core product is the Marker.io Platform and Website Feedback Widget, which captures visual feedback, bug reports, and annotations directly on websites. The platform is supplemented by Session Replay (video recording of user sessions), Workspace Analytics (performance tracking), and Data Masking (privacy controls). AI capabilities are provided through the AI Features module (AI Translation, AI Magic Rewrite, AI Title Generation) and the Marker.io MCP Server (enabling AI agents to autonomously investigate and fix bugs). Developers can integrate via Browser Extensions (Chrome/Firefox/Edge), JavaScript SDK/NPM packages, or the WordPress Plugin. All products share the same underlying widget technology and integrate with common project management and issue tracking tools.
Differentiator
Problem solved
Functional benefit
Products and services
- Marker.io Platform Cloud-based SaaS platform that enables teams to capture visual feedback, bug reports, and annotations directly on websites with automatic technical metadata (screenshots, console logs, network requests, session replays). Designed for product, QA, web, design, and engineering teams inside companies, agencies, and e-commerce organizations.
- Marker.io MCP Server Integration layer that exposes Marker.io bug report context (screenshots, console logs, network requests, browser metadata) to AI coding agents, enabling autonomous investigation and fixing of bugs.
Quantifiable outcome
- 10x faster issue identification (L'Oréal)
- +3 more outcomes
Companies that use Marker.io
Customer profileNamed customers9 records
Segments5 records
Ideal customer profiles4 records
Marker.io technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration23 records
AI capability9 records
Feature6 records
Marker.io partnerships and signals
Strategic signalPartnerships
15 partnerships are on record, tiered core.
- JiracoreDeep 2-way integration with Jira Software. Feedback syncs bidirectionally with status, comments, and custom fields. Available as direct integration option on integrations page.
- TrellocoreIntegration allowing feedback to be pushed directly into Trello boards with full issue context and metadata.
- Asanacore2-way integration with Asana for syncing feedback, status updates, and comments between Marker.io and Asana projects.
- GitHubcoreIntegration with GitHub issue tracker for direct bug reporting and issue management within GitHub ecosystem.
- GitLabcoreIntegration with GitLab issue tracker for seamless bug reporting and issue management.
- Azure DevOpscoreIntegration with Azure DevOps for enterprise bug tracking and project management workflows.
- LinearcoreIntegration with Linear issue tracker for fast bug reporting and status synchronization.
- BitbucketcoreIntegration with Bitbucket issue tracker for bug reporting within Atlassian ecosystem.
- SlackcoreSlack integration for notifications and collaboration when issues are reported or updated.
- ClickUpcore2-way integration with ClickUp for syncing feedback, statuses, and comments bidirectionally.
- Monday.comcoreIntegration with Monday.com for project management and bug tracking workflows.
- WordPresscoreOfficial WordPress plugin available on WordPress plugin directory for easy CMS integration.
- AWScoreInfrastructure hosting provider. ISO 27001-certified infrastructure in Ireland/EU region. Data stored with physical and network security.
- CloudflarecoreWeb performance and security via Cloudflare WAF and network protection.
- StripecorePayment processing for subscriptions. OAuth standard integration ensuring secure payment handling.
Scale indicators6 records
Recent moves6 records
Expansion highlights6 records
Marker.io competitors and assessment
Company assessmentDirect peers
- BugHerd: BugHerd is a visual feedback and bug-tracking tool that lets users pin comments directly onto webpages, then routes issues to project management tools. It is the most direct competitor to Marker.io in website annotation, visual feedback, and PM tool integrations, and is explicitly named in Marker.io's comparison pages.
- Usersnap: Usersnap provides visual bug reporting and customer feedback tools for web and mobile apps, with screen capture, annotation, and integrations into Jira and other dev tools. It competes head-to-head with Marker.io on visual feedback, screenshot annotation, and dev-tool routing, and is named in Marker.io's competitive comparison content.
- Userback: Userback offers in-app visual feedback, session replay, and bug reporting with integrations to Jira, Linear, GitHub, and similar project trackers. It targets the same use case as Marker.io (collecting website feedback, sending issues to dev workflows) and is listed in Marker.io's competitor comparison pages.
- Markup.io: Markup.io is a website annotation and visual feedback tool aimed at agencies, designers, and marketing teams for collecting client feedback on live pages. It overlaps directly with Marker.io's website annotation and agency use cases, and is included in Marker.io's "vs" comparison pages.
- Pastel: Pastel is a visual feedback and canvas-style comment tool for websites, used by agencies and marketing teams to collect client comments on live pages. It targets the same website feedback and client-collaboration workflow as Marker.io, and is one of the alternatives Marker.io explicitly positions against.
- Jam: Jam is a one-click browser extension for reporting bugs with auto-captured technical context (console logs, network requests, repro steps) and integrations to Jira, Linear, and GitHub. It is one of the closest direct competitors to Marker.io's bug reporting and auto-capture value proposition, with a similar product-led, free-tier GTM.
- Bird Eats Bug: Bird Eats Bug is a browser-based visual bug reporting tool that records the user's screen along with console logs and technical metadata and integrates with issue trackers. It directly competes with Marker.io on the combination of session recording + dev tool routing and serves a similar SMB-to-mid-market customer base.
Broad incumbents
- Hotjar: Hotjar is an established product analytics and feedback platform offering heatmaps, session recordings, and on-site surveys. It overlaps with Marker.io on the "feedback and behavior insight" layer, especially in marketing/UX teams, but does not focus on dev-tool-integrated bug capture the way Marker.io does.
- Sentry: Sentry is a major application monitoring and error-tracking platform that captures exceptions, performance data, and session replays across web and mobile. While it focuses more on automated error capture than human-reported visual feedback, it increasingly converges with Marker.io's territory through session replay and issue-routing features.
Emerging players
- Instabug: Instabug provides in-app bug reporting, crash reporting, and user feedback primarily for mobile applications, with integrations into Jira and other dev tools. It targets the same "bug reporting with full context, routed to dev workflows" problem as Marker.io but on the mobile/native side, making it a partial-overlap rather than direct web competitor.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Marker.io social profiles
Digital presenceMarker.io compliance and trust
Trust signalCompliance4 records
Marker.io financial estimates
Financial estimateRevenue estimate
Valuation estimate
Marker.io leadership team
Management profileNumber of profiles
Profiles8 records
Marker.io funding detail
Funding detailFunding overview
Funding rounds2 records
Investors2 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Marker.io M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Marker.io
What does Marker.io do?
Marker.io provides a cloud-based website feedback and bug reporting SaaS platform that lets teams capture visual annotations, screenshots, and bug reports directly on live web pages via an embeddable widget, browser extension, or JavaScript SDK. The platform automatically attaches technical context such as console logs, network requests, and session replays to each report, and routes issues through two-way integrations with 30+ project management and issue tracking tools.
Is Marker.io a public or private company?
Marker.io is a private company. It is classified as venture growth investor backed and is currently operating.
When was Marker.io founded?
Marker.io was founded in 2015. It employs 11 to 50 people.
Where is Marker.io based?
Marker.io is headquartered in Brussels, Belgium, in the Europe region.
How does Marker.io make money?
One revenue line is on record: saaS Subscription.
Who are Marker.io's main competitors?
Direct peers on record are BugHerd, Usersnap, Userback, Markup.io, Pastel, Jam and Bird Eats Bug. Broad incumbents are Hotjar and Sentry. Instabug is listed as an emerging player.
Does Marker.io have an API?
Yes. Marker.io offers a JavaScript SDK (@marker.io/browser and @marker.io NPM packages) that allows developers to programmatically control the widget, trigger captures, set custom data, identify reporters, and handle events. The SDK is accessible via window.Marker after loading the snippet. Core methods include Marker.show(), Marker.hide(), Marker.capture(), Marker.cancelCapture(), Marker.setReporter(), Marker.setCustomData(), Marker.unload(), and event handlers for load, capture, feedbacksent, and feedbackerror events. Additionally, Marker.io provides an MCP (Model Context Protocol) server that connects AI agents (Claude, Cursor, Windsurf) to bug reports, enabling them to read screenshots, console logs, network requests, and browser details to investigate or fix website issues. The MCP server is available to all Marker.io customers at no extra cost. Developer documentation is at help.marker.io/en/articles/4621840-widget-javascript-sdk.
What industry is Marker.io in?
Marker.io's product category is Bug Reporting and Website Feedback Software. Its primary akta.pro industry code is MPAFAFAM, Testing, Automation, Crash Reporting & Telemetry SDKs, with a secondary code of BPAMAOAH, API Documentation & Developer Portals. Its NAICS code is 51929 and its SIC code is 7371.