April 4, 2026
Delete wars: Gmail edition
Show HN: mailtrim – find what's actually filling your Gmail inbox
Tiny emails, big mess: fans cheer cleanup, Inbox Zero purists rage, AI fakery questioned
TLDR: A new local tool, mailtrim, finds the senders filling your Gmail and lets you safely bulk-clean with a 30‑day undo. Commenters split between Inbox Zero bragging and “thank you” relief, while one sharp take questions a possible AI tie-in from the README, sparking privacy and authenticity chatter.
Gmail spring cleaning just turned into a street brawl. A dev dropped mailtrim, a free, open-source tool that finds the senders actually eating your storage and helps bulk-delete safely with a 30‑day undo. It runs on your computer and promises your messages don’t leave your machine. The catch? A one-time Google setup that takes about 15 minutes — which the maker admits is the only “slightly annoying” part.
Then the comments happened. Inbox monks came swinging. One veteran boasted they’ve kept just 28 total emails in nearly 20 years and called hoarding “an attack vector,” basically telling the rest of us to touch grass and the delete key. On the other side, overwhelmed mortals cheered the tool as “Very useful！”, grateful for a way to expose the three sneaky senders clogging up 30% of the inbox.
But the real drama? AI suspicion. A sharp-eyed commenter asked, “Did you really use a LLM to generate the sample output,” and flagged a line in the docs mentioning “Claude AI,” raising eyebrows about how “local” this all is. The dev kept it chill, offering setup help and asking for feedback on the safety model, while the crowd split between “finally, a broom” and “just delete your stuff.” It’s the age-old war: Inbox Zero vs Email Goblin, now with a side of AI tea.
Key Points
- •mailtrim is an open-source tool to analyze Gmail inbox storage and identify high-impact senders.
- •It ranks senders by actual storage impact rather than email count.
- •The tool includes confidence scoring for safe bulk deletion and a 30-day undo period by default.
- •mailtrim runs locally with no email data leaving the user’s machine; it has no subscription or backend and is MIT-licensed.
- •A one-time Gmail API setup (~15 minutes) is required; primary commands are “mailtrim stats” and “mailtrim purge.”