Diffsmith
Comment on your AI agent's code & collaborate on changes
Diffsmith launched on July 21, 2026 with 88 votes, #478 of 24,623 launches that month and more than 95% of that year's launches.
What it does
Diffsmith is a code review studio for local git changes made by Claude Code, Cursor, Codex, Copilot, or any other AI coding agent. Open a repo, read the uncommitted diff, and click any line to leave a comment anchored to that exact spot. Then hand your notes straight back to the agent. Supports MCP for viewing you're agent's replies to your comments directly at the line of code it relates to. Diffsmith is 100% offline and a one time purchase unlocks lifetime access.
Quick Draw is a small macOS app for drawing lines, arrows, rectangles, circles and text straight onto your screen, over any window. Highlight what you
Lines, arrows, rectangles, circles and text, drawn straight onto your screen over any window. Point out what you're talking about while screencasting, or cover up what shouldn't be in a screenshot. Press escape and you're back to work. Circling the cursor wildly and hoping people follow it is not a great way to point at something. Draw an arrow to it instead, or put a box around it, and everyone watching knows exactly where to look. Hold shift and a rectangle fills in solid, so anything you'd rather not share is covered before the screenshot is even taken. No cropping, no opening an image editor afterwards. Press T and type. The text lands in whichever colour you have selected, sized to…from apps.mergeable.io
Does a similar job
all alternatives →
Codiff, a local diff review toolMay 2026 · github.com · ▲31Nowadays I review a lot of code locally that was written by llms. I used to review my own code using git + delta. It started to feel limiting with the amount of code written by llms. When looking at a large diff on Friday I pointed an llm at diffs.com and trees.software and told it to build an app. It only took 16 minutes, is extremely fast for large diffs, beautiful and minimal. Today I polished it up and added all the features that I need. It has file filters, search, an llm walkthrough mode, and review comments that you can paste back into your llm. I will be using Codiff a lot, and can…
- DADiffmatic – A daily GitHub digest for dev teams2014 · diffmatic.com · ▲67
We built an AI to review your pull requests2025 · infinitcode.ai · ▲53Hey HN, We’re two developers (co-founders) with a team of 20 who got tired of spending hours reviewing PRs, so we built Infinitcode.ai, an AI-powered code reviewer that: - *Summarizes PRs in plain English*: No more deciphering 1,000-line diff jungles - *Catches more than bugs*: Security holes, performance pitfalls, code smells, even typos (yes, we’ll flag “vurnerabilities” and vulnerabilities) - *Zero onboarding*: Works instantly—no “let me learn your codebase for weeks” nonsense. Why we’re posting: We’re in alpha and need brutal honesty. Roast our tool, mock our UI, or tell us why AI will…
More ai this month
the category →
Paintings by AI models: programs run through a simulation of oil paint.
AI · 20d ago · stillwet.art
PixVerse R2▲381A real-time world model you can explore and change
AI · 28d ago · world.pixverse.video
Source: Product Hunt launch ↗
Launched alongside, July 2026
the whole month →- IR
I might be the only SRE on Earth with his own bowling center. It's a more in-depth gig than you'd think. My family and I bought an abandoned 8-lane bowling center in the rural mid-west. In our small town there weren't many recreation options for families. You've heard of a food desert? This is an R&R desert. It had been abandoned for a good reason. The roof leaks, the electrical system was constantly surging, and my 70-year-old bowling equipment (still) doesn't work perfectly. The system that keeps your score is particularly interesting to me. It's the thing you watch during your game, but…
Life & fun · Jul 2026
18 Words▲1,160Play 18 Words, the free daily word puzzle. The official home is 18words.com. Tap Play now to open today
Life & fun · Jul 2026 · 18words.com
- BA
Over the past few months, our team has been building more and more slidedecks using web frontend technologies with coding harnesses like Claude Code, but a common complaint is to make even small edits we need to edit the code either manually or via the harness. To avoid this loop, I ended up creating Bento, a single HTML file with everything you need in a slide tool including animations and shared editing. There's no install or cloud login, everything works offline. The default deck is around 560 KB and it doesn't need to fetch anything once you got it. Open it in a browser and then you can…
Dev tools · Jul 2026 · bento.page
A few days ago I found myself trying out GLM 5.2 and was really positively impressed. The capabilities and security I was getting from this LLM are similar to those I've gotten from models like Claude or GPT, and this really surprised me. But then I thought, "I wonder how it would work on a normal computer like mine," and above all, "I wonder if it would work without going into OOM on a computer like mine." So I started working with the help of agents to test this possibility. I started converting the model to int4, understanding MTP usage, and if possible implementing DSA for long context.…
AI · Jul 2026 · github.com
OpenSEO▲928Hello! For the last 2 months, I've been building OpenSEO. It's a user friendly UI wrapping the DataForSEO API which has high quality SEO data for keywords, backlinks, AI SEO and competitor research. Instead of paying $100+ per month, you buy DataForSEO credits and pay only for usage. The coolest thing about the project so far has been hearing about what people are building on top of it. People are using coding agents to quickly integrate with Google Search Console, Google Ads and building their own AI SEO and reporting features. Many were already building their own custom solutions around…
Dev tools · Jul 2026 · openseo.so