ToolKnit
90 browser tools. Zero uploads, 100% private.
2 followers
90 browser tools. Zero uploads, 100% private.
2 followers
ToolKnit: 90 free browser tools across 10 categories.
PDF, image, video, audio, text, creative, AI & more.
Every tool runs 100% locally — no uploads, no accounts,
no tracking. Your files never leave your device.
PDF: compress, merge, convert. Image: 19 tools + AI
background remover. Video: compress, GIF maker.
Creative: whiteboard, QR codes, pixel art.
AI: Tarot, Text Adventure, Trajectory.
No signup. Works offline (PWA + Windows app).
115 days uptime. 141 articles. Solo-built.
May 19, 2026
The Homepage Simplification
UI / UX
Hero section removed — Eliminated the standalone hero area entirely. The Tool Library card now serves as the primary above-the-fold content, giving users immediate access to tools without scrolling.
SEO preserved — Promoted the Tool Library heading from <h2> to <h1>; all meta tags, Open Graph, and structured data remain intact.
Content width expanded — Increased from 1200px to 1500px effective content width, with a 4-column tool grid on ≥1440px screens.
Navigation bar refinements — Added 25px padding on each side for breathing room; pill indicator now waits for fonts.ready before measuring to fix first-visit width glitch.
Search box alignment — Unified all container max-width and padding so the search bar, filter strip, and tool grid share identical left/right edges.
Language toggle fix — Fixed restoreAll() corrupting filter button innerHTML when switching languages (was treating data-label as textContent).
Full Chinese translation — Tool Library kicker, heading, description, and all four stat labels now translate correctly; added cache-busting ?v=32 to i18n.js and zh.json.
A note from the developer
Today I only managed one thing — redesigning the homepage. Slept poorly both during the day and at night, brain running on fumes. Finishing this round of UI tweaks was genuinely the limit of what I could push through.
Removed the big Hero section entirely. Now when you open the homepage, the tool library cards are right there — no more scrolling past a decorative splash to find actual tools. Widened the content area to 1500px so widescreen monitors finally aren’t wasting space. Also squashed the language-toggle bug where icons disappeared after switching to Chinese and back — root cause was restoreAll() treating data-label as textContent. One conditional fixed it.
Planning to rest properly for a couple of days. Catch up on sleep, let the brain recharge, then keep optimizing. The site won’t go dark — just slowing the pace for a moment.
Health first. Goodnight.
Zihang DongMay 19, 2026 — 12:30 AM, barely awake, finally done
May 19, 2026
The AI to PNG & Second Milestone Edition
NEW TOOL
AI to PNG — A new browser-based converter for Adobe Illustrator files saved with PDF compatibility. Export supported AI files to PNG locally, preview every page or artboard, and download single images or a ZIP batch without uploading assets to any server.
NEW BLOG POST
How to Convert AI to PNG Online — Free & Private — A practical guide covering AI file compatibility, why PDF-compatible Illustrator files matter, the best export resolutions, and how to pair the new converter with Background Remover to create transparent PNG assets.
MILESTONE
24picture.com is now live — My second independent project officially launched today. You can visit it here: 24picture.com. It started around AI image generation, and it may gradually grow into its own image-first utility toolbox alongside ToolKnit.
Release references updated — Blog index, sitemap, service worker precache, homepage counters, public stats naming, and release documentation were all updated to include the AI to PNG launch and the end-of-day IndexNow workflow.
A note from the developer
It’s May 19 here in China, and it has been raining for several days straight. I’ve actually been in a very good mood lately, which slowed the update rhythm a little — but today I still made time to ship something I really wanted on ToolKnit: AI to PNG.
I like this one because it fits so naturally into the rest of the site. Convert an Illustrator file to PNG first, then run it through Background Remover if you want a transparent result. It’s a simple workflow, but it feels incredibly useful for logos, graphics, stickers, and quick handoff assets.
Today also marks another personal milestone: 24picture.com is officially online. It’s my second project. It used to lean more toward AI image generation, but lately I’ve been thinking that building it into a sharper image toolbox might be even more fun. ToolKnit will stay broad. 24picture can stay more image-focused. Two independent sites, both moving forward at the same time — that makes me really happy.
As for life, it’s been good. I’ve been working seriously, coding seriously, and trying to keep showing up every day. Tomorrow is May 20, so let me say it a little early: I hope everyone gets to spend that special day well with the person they love.
We’re still here. And we’ll keep building.
Zihang DongMay 19, 2026 — rainy season, but still a very good day
Hey Product Hunt! I'm the solo dev behind ToolKnit.
When I started this 115 days ago, it was just 5 PDF tools.
Now it's 90 tools across 10 categories, all running locally
in your browser via WebAssembly.
The philosophy is simple: no uploads, no accounts, no tracking.
Your files never leave your device.
I ship updates almost daily based on user feedback. Happy to
answer any questions — and if you have a tool request, drop it
below. I might just build it this week.
— A human, not an AI