Open Archiver

Open Source Email Archiving and eDiscovery

About Open Archiver

Open Archiver is a secure, self-hosted, open-source platform for email archiving and eDiscovery. It ingests mail from Google Workspace, Microsoft 365, PST files, and generic IMAP servers, then stores messages with deduplication and compression on local or S3-compatible storage. Full-text search across messages and attachments, retention policies, legal holds, and an immutable audit trail help organizations keep a permanent, compliant, searchable record of their communication history.

Open Archiver website preview

Live preview of openarchiver.com via the WordPress mShots service — it can take a few seconds to generate on a first visit.

Open Archiver: strengths & things to check

Strengths

Free tier available — you can start without paying (freemium model).
Covers email, archiving, self hosted, open source, ediscovery — see the focus areas listed in its key facts.
Has 6 close alternatives in the same category on this page, so switching or comparing is easy.

Things to check

The full feature set sits behind a paid plan — check which limits the free tier carries on the official site before committing.
Current plan prices are not listed here (they change too often to print reliably) — confirm the exact price on the official site.
It is one of 1009 tools in the Data & Analytics category here — compare it against the alternatives below before you commit.

Derived from this listing's own data (pricing model, focus areas and category) — not a hands-on review score.

Open Archiver pricing

Pricing model	Freemium — a free tier lets you start, and paid plans are available if you need more.
Free access	Yes — free tier, paid upgrades available
Current plan prices	Listed on the official site — prices change, so this directory links out instead of printing a number that may already be stale.
Official site	openarchiver.com

Open Archiver key facts

Category: Data & Analytics
Pricing: Freemium — a free tier lets you start, and paid plans are available if you need more.
Focus areas: email, archiving, self hosted, open source, ediscovery
Official site: openarchiver.com

Open Archiver FAQ

How much does Open Archiver cost?

Freemium — a free tier lets you start, and paid plans are available if you need more. Current plans and prices are listed on the official site (openarchiver.com).

What is Open Archiver used for?

Open Source Email Archiving and eDiscovery Its focus areas in the Data & Analytics category: email, archiving, self hosted, open source, ediscovery.

Where can I try Open Archiver?

On its official site, openarchiver.com — the Visit Official Site button above goes straight there.

Open Archiver vs alternatives

	Open Archiver	ArchivesSpace	AWStats	Collective Access - Providence
Pricing	Freemium — a free tier lets you start, and paid plans are available if you need more.	Free — listed in this directory as a free tool, with no paid plan required to use it.	Free — listed in this directory as a free tool, with no paid plan required to use it.	Free — listed in this directory as a free tool, with no paid plan required to use it.
Focus areas	email, archiving, self hosted, open source, ediscovery	archives, open source, libraries, self hosted	analytics, log analyzer, open source, self hosted	collections, archives, museum, open source, self hosted
Official site	openarchiver.com	archivesspace.org	awstats.org	collectiveaccess.org
Directory status	Listed	Listed	Listed	Listed

Side-by-side from each listing's own directory data. Full alternative cards are below.

About the Data & Analytics category

Analytics and BI platforms that turn raw data into clear insights. The Data & Analytics category on Tools Hub currently lists 1009 tools. Alongside Open Archiver, it includes Lago, Context Data, Open-Meteo, SheetAI.

FreemiumData & Analyticsemailarchivingself-hostedopen-sourceediscovery

Alternatives to Open Archiver

Tools in the same Data & Analytics category that share focus areas with Open Archiver — worth comparing before you commit:

Data & Analytics

ArchivesSpace

Open-source application for managing archives, manuscripts, and digital objects

Freearchivesopen-sourcelibrariesself-hosted

Data & Analytics

AWStats

Open-source log file analyzer generating advanced statistics for web servers.

Freeanalyticslog-analyzeropen-sourceself-hosted

Data & Analytics

Collective Access - Providence

Web framework for managing and describing museum and archival collections

Freecollectionsarchivesmuseumopen-source

Data & Analytics

datannur

The open-source, lightweight, and sovereign data catalog

Freedata-catalogmetadataopen-sourceself-hosted

Data & Analytics

ESMira

Run longitudinal studies with completely anonymous participant data collection

Freeexperience-samplingresearchopen-sourceself-hosted

Data & Analytics

LibreDB Studio

The database editor that deploys next to your data

Freedatabasesql-ideself-hostedopen-source

More in Data & Analytics

Comparing tools in the Data & Analytics category? These related listings are worth a look: Lago — Cloud billing for usage, subscriptions and hybrid pricing; Context Data — Governed access to production data for AI agents; Open-Meteo — Free open-source weather API, no API key required.