Show HN: Open-source email archiving tool with full-text search

1 wayneshng 0 8/9/2025, 1:59:02 PM github.com ↗

Hey HN,

I’d like to share an open-source email archiving tool I’ve created.

So the backstory is that I run a small software company and all our contracts, financial documents, and client communications are stored in Google Workspace emails. One day, it struck me that what if we lost access to our Google Workspace due to some vendor abnormalities (which is not rare).

So I built this open-source tool that helps individuals and organizations to archive their whole email inboxes with the ability to search. I think this might be of interest to the DataHoarder sub, so I will share it here.

The tool is called Open Archiver, and it is able to archive and index emails from cloud-based email inboxes, including Google Workspace, Microsoft 365, and all IMAP-enabled email inboxes. You can connect it to your email provider, and it copies every single incoming and outgoing email into a secure archive that you control (Your local storage or S3-compatible storage).

The tool is called Open Archiver, and it has the ability to archive emails from cloud-based email inboxes, including Google Workspace, Microsoft 365, and all IMAP-enabled email inboxes. You can connect it to your email provider, and it copies every single incoming and outgoing email into a secure archive that you control (Your local storage or S3-compatible storage).

Some features:

- Archive and index all emails and attachments

- Back up the whole organization's emails: For Google Workspace and MS 365, Open Archiver can import and sync all individual inboxes' emails

- PST and .eml files import

- Role-based access

- Full-text search: All archived emails and attachments are indexed, so you can search all emails and attachments from Open Archiver's web UI

- You can choose to store your files either on your local machine or on any S3-compatible storage provider

- API access

It's open-source and free to use for personal and business purposes. I'd be happy if you could give it a try and give me some feedback.

You can find the project on GitHub (Demo site available): https://github.com/LogicLabs-OU/OpenArchiver

AI Doesn't Just Lie – It Can Make You Believe It (bloomberg.com)

Extension that allows your Chrome browser to share context with LLMs (github.com)

Our Age of Zombie Culture (newyorker.com)

Ask HN: How do you find honest tech reviews?

Tracing the Origins of Fisher-Price Little People (brainbaking.com)

The Attention Economy and Young People (profgalloway.com)

Spacecraft could carry up to 2,400 people on a one-way trip to Alpha Centauri (livescience.com)

Ask HN: ChatGPT – GTM Reverse Engineered – Pre Virality

The Troubling Decline in Conscientiousness (ft.com)

Call for Research Participants (forms.cloud.microsoft)

Why Context Architecture Beats Prompt Engineering. The Precursor Manifesto (medium.com)

Spurious Correlations (tylervigen.com)

GPT-5 Thinking says: this ABC proof is rigorous (zenodo.org)

How one mother lost her daughter to mental illness (theguardian.com)

Nitpicks: Record a video and let an agent implement the code (nitpicks.ai)

I solved my biggest founder problem (and it wasn't what I expected) (feedbackkit.app)

Ask HN: SleepLive – ASMR custom audio and video requests platform (sleeplive.io)

Empire of the Absurd: A Brief History of the Absurdities of the Soviet Union (laurivahtre.ee)

UK unveils plans to 'transform' the consumer smart meter experience (theregister.com)

So, About Those Big Trade Deals (theatlantic.com)

'Toothless' compulsory voting can increase voter turnout (phys.org)

All-In on Omarchy at 37signals (world.hey.com)

Memory 2.0: Attentive Memory (2012) (blog.ninlabs.com)

Canada approves national standard for age verification, estimation (biometricupdate.com)

It's a mess: Quantum Mechanics turns 100 years old (quantamagazine.org)

Ask HN: Do you not submit things because page is festooned w pop-ups/ads/etc.?

ChatGPT Agent – EU Launch (help.openai.com)

How California energy policy is holding back a game changing climate technology (sfchronicle.com)

Ask HN: What do you use for user management/IAM in your SaaS app?

Tell HN: ChatGPT 4o has been re-enabled

Irmin Retrospective (patrick.sirref.org)

The Ancient Art and Intimate Craft of Artificial Eyes (thereader.mitpress.mit.edu)

End-User Programmable AI (queue.acm.org)

VR with: 1,400 nits – 180° FOV – 90 pixels per degree (meta.com)

60% of medal of honor recipients are Irish or Irish-American (en.wikipedia.org)

Show HN: Grid-table – Emacs grid table with rich text, images, formulas (github.com)

Cartels may be able to target witnesses after major court hack (politico.com)

Public DNS malware filters to be tested in 2025 (techblog.nexxwave.eu)

Restaurant chains feel the pinch as US consumers tighten their belts (ft.com)

Oxide's $100M Series B (oxide-and-friends.transistor.fm)

Man-eating' screw worm turns hospital into horror show (telegraph.co.uk)

Toit: A modern high-level language designed specifically for microcontrollers (toitlang.org)

Expediting On-Device LLM Personalization via Explainable Model Selection (arxiv.org)

As electric bills rise, evidence mounts that data centers share blame (apnews.com)

Notes on a Smaller Rust (2019) (without.boats)

Opencode [video] (youtube.com)

What even is distributed systems (notes.eatonphil.com)

Smartwatches offer little insight into stress levels, researchers find (theguardian.com)

Flattery, Lobbyists and Business: Crypto's Richest Man Campaigns for a Pardon (nytimes.com)

Retiring and relocating? Take a holistic approach (apnews.com)

Show HN: Open-source email archiving tool with full-text search

Comments (0)