10 min read
Convert Images to WebP in the Browser Without Uploading
Convert JPEG, PNG, GIF stills, BMP, and HEIC to WebP locally. Quality slider or lossless. Folder drop + ZIP.
WebPJPEGPNG
note/016Read
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Notes on AI tools, web development, and shipping products.
Field notes from building browser extensions, developer tools, React applications, and Cloudflare-backed products as an independent developer.
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15 posts
Notes, essays, build logs, loose thoughts, and whatever else felt worth keeping.
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Builder field notes
Implementation details, experiments, product decisions, and lessons from shipping.
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AI and web development
Notes on AI-assisted workflows, React, TypeScript, Cloudflare, and browser tooling.
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Recent technical notes and build logs.
Read implementation notes, product experiments, and observations from shipping independent software.
7 min read
Convert HEIC to JPG in the Browser (Files Stay on Your Device)
Convert iPhone HEIC/HEIF to JPEG locally. Quality slider, parallel batch, ZIP download. Nothing uploaded.
HEIC to JPGHEIFJPEG
note/015Read
5 min read
How to Download Suno Lyrics as LRC or SRT
Export timestamped Suno lyrics locally as LRC or SRT. Lyrics only — no audio rip. Steps + sample workflow.
Suno Lyric DownloaderLRCSRT
note/014Read
6 min read
How to Translate Webpages Offline in Chrome (No Cloud Upload)
Use Chrome’s built-in Translator API to translate pages on-device. Language packs once, then offline. Pair with Native Translate.
Chrome Translator APINative Translateoffline translation
note/012Read
7 min read
Trim Video in the Browser Without Uploading
Cut clips locally with FFmpeg.wasm. Files stay on your device. Limits for size, codec, and memory explained.
Video ClipperFFmpeg.wasmbrowser video trim
note/013Read
2 min read
这周往收银台送人最快的站
Stripe 2026.08 榜：OpenCode 送出 1.21M，环比 +73.89%；Suno 冲到第二，+53.21%。编码代理还在加速，小站 Sellvia 也能一个月送出 52 万次收银台。
付费需求独立开发者工具
note/011Read
3 min read
Jev 不写字，只做判断
Jev 不是下一代 ChatGPT。它不聊天，不写代码。吃一段 state，加一组锁死的问题，吐回带概率的判断。快是真的。神不是。
JevAgent工具
note/010Read
1 min read
支付页到达率破10%的工具
这周 Stripe 引荐榜上，OpenCode 支付页到达率破 10%，AI 编码工具出现硬付费闭环。高到达率产品值得优先验证。
付费需求独立开发者工具
note/009Read
1 min read
AI视频工具还在硬送付费流量
Stripe 2026.07 数据：higgsfield.ai 送出 2.69M 付费流量，到达率约 5.8%。AI 视频和编程代理仍是最硬信号。优先验证特定特效一键生成。
付费需求独立开发者工具
note/008Read
4 min read
Grok Bot 上手：先画边界再干活
Grok Bot 不是对话框加强版。它是一台云电脑上的队友：能登录工具、过夜干活、关笔记本也不停。8 月 26 日起 SuperGrok 和 Cursor Pro 都能用。先画边界，再让它干活。
Grok Bot独立开发者工具
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