This product was not featured by Product Hunt yet. It will not be visible on their landing page and won't be ranked (cannot win product of the day regardless of upvotes).
Gashuku
Compress images privately in your browser.no server uploads.
π¦ Save your compression settings and reuse them instantly. Gashuku lets you create custom presets β choose quality, format, and max width, then save and recall in one click. No more adjusting the same settings every time. β Custom presets β save & reuse settings β Completely free, no file limits β JPEG, PNG, WebP, AVIF conversion β No server uploads β images never leave your browser Perfect for bloggers, designers, and anyone who compresses images regularly. π gashuku.jp
Hi Product Hunt!
I'm Yasuo, a solo developer from Japan. I built Gashuku out of frustration with my own workflow.
Every time I wrote a blog post, I'd drag images into TinyPNG, hit the 5MB limit, switch to Squoosh, manually dial in the same settings I always use β quality 0.8, WebP, max 1280px β then repeat for every image. Mindless repetition.
Two things were missing from every tool I tried:
1. A generous file size limit. AI-generated images can easily reach 6β8MB. Gashuku supports up to 20MB per file β 4Γ the limit of TinyPNG.
2. Presets. If I use the same settings 90% of the time, I should be able to save them and recall in one click.
The "no server uploads" part came from client work. Uploading a client's website screenshots to a third-party server always felt off. With Gashuku, your images never leave your browser β compression runs entirely in JavaScript.
It's completely free, no account required. I'm also planning to add new features going forward β would love to hear what you'd find most useful.
I'd love to hear how you use it β or what's missing. Happy to answer any questions!
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About Gashuku on Product Hunt
βCompress images privately in your browser.no server uploads.β
Gashuku was submitted on Product Hunt and earned 3 upvotes and 1 comments, placing #160 on the daily leaderboard. π¦ Save your compression settings and reuse them instantly. Gashuku lets you create custom presets β choose quality, format, and max width, then save and recall in one click. No more adjusting the same settings every time. β Custom presets β save & reuse settings β Completely free, no file limits β JPEG, PNG, WebP, AVIF conversion β No server uploads β images never leave your browser Perfect for bloggers, designers, and anyone who compresses images regularly. π gashuku.jp
Gashuku was featured in Productivity (652.4k followers), Photography (142.9k followers) and Developer Tools (512.9k followers) on Product Hunt. Together, these topics include over 215.8k products, making this a competitive space to launch in.
Who hunted Gashuku?
Gashuku was hunted by Kosei Takayama. A βhunterβ on Product Hunt is the community member who submits a product to the platform β uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how Gashuku stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Kosei Takayama