SizeHex

What it does

SizeHex is a free online image optimization toolkit that helps creators, developers, designers, marketers, and businesses optimize images directly in their browser. Compress, resize, convert, crop, and optimize images in seconds using modern formats like WebP and AVIF. Improve website speed, Core Web Vitals, and SEO without installing any software. Fast, privacy-friendly, and completely free.

Compress, resize, convert, and optimize images, PDFs, and more. SizeHex is your free online toolkit for fast, secure, and privacy-focused digital tasks.

Compress, resize, convert, create and optimize with simple online tools for images, PDFs, developers and more. Reduce image size instantly without losing quality or waiting for uploads. Convert seamlessly between JPG, PNG, and WebP formats with ease. Resize images to exact pixel dimensions for social media or web. Upgrade legacy images to the modern WebP format for 30% smaller files. Create high-quality, non-expiring QR codes for URLs, WiFi, text, and more. Crop, rotate, and frame your photos with absolute precision for any platform. Convert PDF documents to fully editable Word files securely. Instantly convert Apple HEIC photos to standard JPG format right in your browser. Strip hidden…from sizehex.com

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  OptimizeImages2022 · optimizeimages.com · ▲326

  Convert & compress images up to 90%, webp & AVIF supported

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  I built PixSpeed to optimize website images for free2024 · pixspeed.com · ▲42
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  Optimize-image.io2025 · ▲10

  Reduce image size and compress photos in seconds

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  ShrinkPix2025 · shrinkpix.online · ▲6

  Compress images instantly

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  TypeIMG2024 · ▲9

  Intelligent Image Optimization

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  Quick Image Tools2024 · quickimagetools.com · ▲10

  From resize to AI enhance — everything in one place.

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  Contribute to oosexgang/hackios-xnu-kernel development by creating an account on GitHub.

  Dev tools · 1d ago · github.com

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  /dev/null▲492

  a social network for devs

  Dev tools · 5d ago · dev-null.sh

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  Whiteboard (YC W26) – an open-source IDE for thoughtful software design▲423

  open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

  Dev tools · 29d ago · github.com

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  Contribute to reladraw/reladraw development by creating an account on GitHub.

  Dev tools · 27d ago · github.com

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  OpenBot▲362

  Grok Bot alternative: free, local, open-source, multiplayer

  Dev tools · 25d ago · openbot.run

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  Talanoa▲346

  Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

  Dev tools · 22d ago · talanoa.email

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  Hey Noah▲656

  A proactive AI executive assistant for founders

  AI · Aug 2026 · heynoah.io

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  Clipto MCP▲655

  Hey HN, We recently built Clipto. It’s a tool that lets you search over terabytes of video, audio, and images on your computer, without relying on the cloud. Motivation: we probably all had this similar experience, we know a moment exists in a video or audio, but finding it takes hours scrubbing the timeline. You can send all the media to process in the cloud, but it’s slow, expensive and raises privacy concerns. So we decided to build our own on-device media search engine. How it works (high level): 1. We ingest video, audio, image; normalize formats via ffmpeg; run content analysis to…

  Work · Aug 2026 · clipto.com

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  Simple algorithm and color space to generate diverse skin tones▲627

  Hello HN! I found that picking out plausible but diverse skin tones for my digital art and game development projects was kind of difficult, and I got curious about if there was a way to define a color space that made it easy. I've built a color picker and procedural generation algorithm based on the space as well as a bunch of other fun js features and demos throughout the page that use the equations. If you find it interesting, I have lots of explanations of how I built it and what properties the space has. The methodology might be a bit shaky, but hopefully the result is as helpful for…

  Life & fun · Aug 2026 · toneyalexander.github.io

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  AdAnt AI▲620

  Claude for viral, high-converting social ads

  AI · Aug 2026 · adant.ai

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  Astute▲606

  Automate your B2B brand going viral, with new media creators

  AI · Aug 2026 · company-app.joinastute.com