BlazeDiff Agent
Visual regression your coding agent runs
BlazeDiff Agent launched on June 3, 2026 with 4 votes, #3,322 of 22,647 launches that month and more than 75% of that year's launches.
What it does
BlazeDiff Agent auto-discovers your routes, captures deterministic screenshots, and runs pixel diffs locally. It hands a small region tile to Claude Code, Cursor, or Codex for a verdict, instead of you eyeballing 40 full-size PNGs. No SaaS. No API key. MIT. Built on N-API (Rust), WASM, and pure-JS diff cores: 3 to 4× faster than odiff, 8× faster than pixelmatch on 4K. Already used by Vitest, Shopify, Ant Design, Vega, and ApexCharts.
Open-source visual regression for JS. Deterministic Rust + JS diff cores (3 to 8x faster than pixelmatch and odiff on 4K), SSIM/GMSD metrics, and an agent that hands ambiguous diffs to Claude Code, Cursor, or Codex. No SaaS, no API key.
Rust, WASM, and JS diff cores. SSIM and GMSD metrics. Jest, Vitest, and Bun matchers. An agent that hands ambiguous diffs to Claude Code, Cursor, or Codex. No SaaS. No API key. MIT. Pure-JS core ~1.5x faster than pixelmatch. Rust binary ~4.6x faster than odiff on 4K, up to 8x vs pixelmatch. Wasm build (~32 KB, v128 SIMD) up to ~9x faster than pixelmatch on 4K in the browser. Reproducible on any machine. No SaaS, no API keys, no per-snapshot pricing. Screenshots never leave your machine. Self-hosted from your CI. MIT licensed. When the heuristic can't decide, the agent hands a small region tile to Claude Code, Cursor, or Codex for judgment. Resume from a checkpoint. Reproducible from the…from blazediff.dev
Does a similar job
all alternatives →
BulletAug 2026 · codewithbullet.com · ▲240Hi HN, excited to be sharing this with you guys today. TL;DR: Bullet is a fast coding agent. At our company, we were burning hours waiting on agent runs. The models weren’t the problem. The agent loops around them were slow (unnecessary planning, oversized context, repeated searches, and serial tool calls). So we built Bullet as a passion project, the goal being to help you iterate faster, without giving up quality: - It automatically selects the model and reasoning level for each prompt. - It runs independent searches, reads, and commands in parallel. - It uses targeted code search instead…
Tilde.run – Agent sandbox with a transactional, versioned filesystemMay 2026 · tilde.run · ▲205Tilde started from a simple observation: AI agents are only as useful as the environment they can work in. Giving an agent a prompt is easy. Giving it the right files, credentials, tools, context, and execution environment, safely and repeatably, is much harder. Over the past year, we learned a lot
WarpGrepDec 2025 · morphllm.com · ▲114I review PRs all day and I've basically stopped reading them. Someone opens a 2000-line PR, I scroll, see it's mostly AI-generated React components, leave a comment, merge. I felt bad about it until I realized everyone on my team does the same thing. The problem is diffs are the wrong format. A PR might change how three buttons behave. Staring at green and red lines to understand that is crazy. The core reason we built this is that we feel that products today are built with assumptions from the past. 100x code with the same review systems means 100x human attention. Human attention cannot…
AgentBrushJun 2026 · agentbrush.dev · ▲79Image generation built for coding agents. Let your agent create on-brand visuals for your projects, right inside Claude or Cursor.
More dev tools this month
the category →
open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.
Dev tools · 29d ago · github.com
Contribute to reladraw/reladraw development by creating an account on GitHub.
Dev tools · 27d ago · github.com
Contribute to oosexgang/hackios-xnu-kernel development by creating an account on GitHub.
Dev tools · 16h ago · github.com
OpenBot▲362Grok Bot alternative: free, local, open-source, multiplayer
Dev tools · 24d ago · openbot.run
Talanoa▲346Hi 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 · 21d ago · talanoa.email
Source: Product Hunt launch ↗
Launched alongside, June 2026
the whole month →
Fundraisly▲1,537AI fundraising agent that finds investors and books meetings
AI · Jun 2026 · fundraisly.com
Homebrew 6.0.0▲1,481Today, I’m proud to announce Homebrew 6.0.0. The most significant changes since 5.1.0 are a new tap trust security mechanism, the new faster, smaller, default internal Homebrew JSON API, sandboxing on Linux, better defaults informed by our user survey, many brew bundle improvements, improved performance and initial support for macOS 27 (Golden Gate). Happy to discuss any questions here!
Dev tools · Jun 2026 · brew.sh
Hi HN! I was super frustrated at apps like tiktok and wechat preventing me from saving or downloading the animated gifs, so I made a little tool to turn a screen recording into a slack-sized emoji. Hope you get some value from this!
Life & fun · Jun 2026 · vorpus.github.io
Search 18 years of Hacker News and chart how any topic, tool, or person trended. Overlay terms to compare their rise and fall across 45M posts and comments.
Life & fun · Jun 2026 · hackernewstrends.com