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).
More than 25 fast tools for everyday file tasks — merge/compress/sign PDF, convert HEIC, compress images to an exact size, clean metadata, format JSON, build invoices, and more. Every file is processed in your browser and never uploaded. No account, no per-hour limits.
I got tired of uploading personal PDFs to sites that "process server-side for 24h" just to merge two files. Codegrain does PDF, image, data, text and a few business/dev tasks fully client-side — the files never leave the browser, no upload, no account, no task-per-hour limit.
More than 25 tools so far: merge/split/compress/sign PDF, HEIC→JPG, image compress with a target size (e.g. under 100kb), remove EXIF/metadata, JSON formatter, CSV↔JSON, base64, text diff, invoice/quote, VAT/margin calc, password generator.
Stack: everything runs in-browser (pdf-lib / WASM / Web Workers). No server round-trip, so it's also just faster than the upload-download tools.
Honest limitations: visual PDF signing is not a certified e-signature; visual redaction hides pixels, it's not guaranteed data scrubbing. Would love feedback on the HEIC and target-size compress flows specifically.
I’m also planning to add support for more languages, including German, French, Spanish, and Portuguese, and continue expanding the toolset based on user feedback.
The local browser processing approach is genuinely thoughtful, especially for tools like metadata cleaning and PDF signing where privacy usually takes a back seat. Love that it just works without forcing an account.
Love that everything runs in the browser with zero uploads, and the "compress image to exact size" tool is genuinely useful instead of being another fuzzy slider. Clean execution all around.
Does the HEIC converter actually preserve live photo metadata or just the still frame?
About Private Tools by CodeGrain on Product Hunt
“Free private tools for PDF, images and data”
Private Tools by CodeGrain was submitted on Product Hunt and earned 7 upvotes and 8 comments, placing #125 on the daily leaderboard. More than 25 fast tools for everyday file tasks — merge/compress/sign PDF, convert HEIC, compress images to an exact size, clean metadata, format JSON, build invoices, and more. Every file is processed in your browser and never uploaded. No account, no per-hour limits.
Private Tools by CodeGrain was featured in User Experience (366.6k followers) and Developer Tools (515.4k followers) on Product Hunt. Together, these topics include over 106.9k products, making this a competitive space to launch in.
Who hunted Private Tools by CodeGrain?
Private Tools by CodeGrain was hunted by Andrii Shaidiuk. A “hunter” on Product Hunt is the community member who submits a product to the platform — 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 Private Tools by CodeGrain stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Andrii Shaidiuk
I got tired of uploading personal PDFs to sites that "process server-side for 24h" just to merge two files. Codegrain does PDF, image, data, text and a few business/dev tasks fully client-side — the files never leave the browser, no upload, no account, no task-per-hour limit.
More than 25 tools so far: merge/split/compress/sign PDF, HEIC→JPG, image compress with a target size (e.g. under 100kb), remove EXIF/metadata, JSON formatter, CSV↔JSON, base64, text diff, invoice/quote, VAT/margin calc, password generator.
Stack: everything runs in-browser (pdf-lib / WASM / Web Workers). No server round-trip, so it's also just faster than the upload-download tools.
Honest limitations: visual PDF signing is not a certified e-signature; visual redaction hides pixels, it's not guaranteed data scrubbing. Would love feedback on the HEIC and target-size compress flows specifically.