saasrankedSoftware, ranked on the facts

error monitoring tool · Exceptionless

Exceptionless

Open-source error tracking with .NET and JavaScript clients, a free hosted plan and paid plans from $15 a month.

41/100

#11 of 12 error monitoring tools
Facts checked 9 Oct 2026

In short

Exceptionless suits small .NET and JavaScript teams who want an open-source server they can host themselves, or a cheap hosted plan1,4,10. It documents source maps, version tracking, Slack and webhooks5,7,8. The catch: its clients cover only two languages4, the free plan keeps events 3 days1, and its pricing, security and docs pages name no SOC 2 report, SSO or EU region1,3,11.

Best for: Small .NET and JavaScript teams that may want to self-host.

Where the points come from

SDK coverage4 of 20
Debugging10 of 17
Alerts and workflow2 of 10
Hosting and security11 of 25
Price and limits14 of 28

SDK coverage 4 of 20 points

RuleWhat is publishedPoints
Web and server SDKsJavaScript, .NETClients page lists a .NET client and a JavaScript client (with Node.js example); other languages are not listed4.4 / 12
Mobile SDKsNoneNo iOS, Android, React Native or Flutter client appears on the clients page4.0 / 8

Debugging 10 of 17 points

RuleWhat is publishedPoints
Source mapsYesDocs describe public maps discovered automatically and private maps uploaded from CI/CD or project settings7.6 / 6
Mobile symbol filesNot publishedNot published on the vendor's clients or docs pages3,4.0 / 4
Release trackingYesEvents may carry an application version, used to track which versions cause errors and to detect regressions8.4 / 4
Event trail before the errorNot publishedNot published on the vendor's clients page4.0 / 3

Alerts and workflow 2 of 10 points

RuleWhat is publishedPoints
Alert channelsEmail, SlackDocs cover email notifications and a Slack integration; Teams and PagerDuty are not named5,6.2 / 4
Issue tracker integrationNot publishedIntegrations page names only Zapier, Slack and webhooks, with no Jira, GitHub or GitLab5.0 / 3
Spike and quota controlsNot publishedNot published on the vendor's notifications or docs pages3,6.0 / 3

Hosting and security 11 of 25 points

RuleWhat is publishedPoints
Self-hostingYesSelf-hosting docs cover running the source code, a Docker image and Kubernetes9.6 / 6
Open sourceYesHome page calls it open source; the GitHub repository for the application is licensed Apache-2.02,10.5 / 5
SOC 2 Type II or ISO 27001Not publishedNot published on the vendor's security docs page, which mentions only SSL and data exclusions11.0 / 6
Single sign-on (SAML or OIDC)Not publishedNot published on the vendor's security or self-hosting docs pages11,9.0 / 5
EU data regionNot publishedNot published on the vendor's pricing, security or self-hosting pages1,11,9.0 / 3

Price and limits 14 of 28 points

RuleWhat is publishedPoints
Free planYesFree plan: $0, 1 project, 1 user, 3,000 events a month1.5 / 5
Events on the free plan3000Free plan allows 3,000 events a month1.1 / 5
Cheapest paid plan$15/moSmall plan, $15 a month; the pricing page shows no yearly price1.6 / 8
Events on the cheapest paid plan15000Small plan includes 15,000 events a month1.0 / 5
Error history on the cheapest paid plan30Small plan retention is 30 days1.2 / 5

The rule behind each line: how we score error monitoring tools.

Plans and prices

As the vendor lists them, before tax. Prices are in US dollars unless the plan shows euros; the points use US dollars, with euros converted at the ECB rate.

PlanPrice as listedPer monthNotes
Free1 project, 1 userFree1$03,000 events a month, 3 days retention, daily summary notifications
Small5 projects, 10 users$15/month1$1515,000 events a month, 30 days retention
Medium15 projects, 25 users$49/month1$4975,000 events a month, 90 days retention
LargeUnlimited projects and users$99/month1$99250,000 events a month, 180 days retention

The pricing page lists monthly prices only; no yearly price is shown. Paid plans also offer Extra Large ($199, 1,000,000 events) and Enterprise ($499, 3,000,000 events)1.

Strengths

  • Server code is public under Apache-2.0 and self-hosting is documented9,10.
  • Hosted plans start at $15 a month, with 30 days of history1.
  • Docs describe JavaScript source maps, both public and privately uploaded7.
  • Events can carry an app version, and a fixed stack reopens when a newer version reports it again8.

Limits

  • Client docs list only .NET and JavaScript; there are no listed mobile SDKs4.
  • The free plan keeps events for 3 days and limits error notifications to daily summaries1.
  • The $15 plan includes only 15,000 events a month1.
  • Only Slack, webhooks, Zapier and email are documented for alerts; no ticket tracker integration is named5,6.

Other error monitoring tools

  1. 1
    SentrySmall teams that want wide SDK coverage and the option to self-host
    88/100
    $26/mocheapest paid plan
  2. 2
    BugSnagTeams with web and mobile apps that want readable crash reports and an on-premise option
    86/100
    $20/mocheapest paid plan
  3. 3
    HoneybadgerSmall web teams that want flat pricing and many language libraries
    78/100
    $23.83/mocheapest paid plan
  4. 4
    RollbarSmall web teams that want cheap paid tiers and deploy tracking
    77/100
    $7.50/mocheapest paid plan

All 12 error monitoring tools

Sources

  1. Exceptionless pricing, Exceptionless. Accessed 9 Oct 2026.
  2. Exceptionless, Exceptionless. Accessed 9 Oct 2026.
  3. Exceptionless documentation, Exceptionless. Accessed 9 Oct 2026.
  4. Clients, Exceptionless. Accessed 9 Oct 2026.
  5. Integrations, Exceptionless. Accessed 9 Oct 2026.
  6. Notifications, Exceptionless. Accessed 9 Oct 2026.
  7. JavaScript source maps, Exceptionless. Accessed 9 Oct 2026.
  8. Versioning, Exceptionless. Accessed 9 Oct 2026.
  9. Self hosting, Exceptionless. Accessed 9 Oct 2026.
  10. exceptionless/Exceptionless, GitHub. Accessed 9 Oct 2026.
  11. Security, Exceptionless. Accessed 9 Oct 2026.

Website: exceptionless.com · Markdown version · We are not affiliated with Exceptionless.