
CellR — Cellular Automata Editor
Design cellular automata patterns, animate them, and export as SVG.
@majo_puterka · X
Nerdy, browser-based pattern generator on Wolfram's cellular automata. SVG export, freehand mode, free.
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Design cellular automata patterns, animate them, and export as SVG.
@majo_puterka · X
Nerdy, browser-based pattern generator on Wolfram's cellular automata. SVG export, freehand mode, free.

Turn math, science, systems, and ideas into polished animated videos. Write readable Manic, preview locally or in your browser, and export when the story is ready.
u/anish2good · Reddit
Turn selected web-page text, equations, and diagrams into an animation manic is a declarative language for visual explanation. You write a readable text file; Manic turns it into a smooth, deterministic animation. No timeline scrubbing and no hand-managed keyframes — you describe the objects, the relationships, and the story beats while the engine handles motion, continuity, layout, rendering, and repeatable output. Manic powers visual explanations, animated lessons, simula

Build production-ready React and Next.js apps visually, export clean code.
@MahatiSingh · X

A free browser-based CAD editor for drawing and editing 2D designs with DXF/PDF export.
@KulmanLab · X
- a free and accountless alternative to Autocad

Save reports, diagrams, and exports from Claude, Cursor, and Codex to one durable, searchable vault — not a chat thread that disappears.
@RobinWilgott · X
We’re a persistent-workflow support layer: agents drop reports, release notes, summaries, and other docs into a shared vault (hosted MCP), then find them again with keyword + vector search — so the next agent or teammate isn’t starting cold.

Extract YouTube transcripts, search them, and export as TXT, SRT, or VTT without signup.
AI YouTube Transcript — 无需注册的 YouTube 转录工具,可搜索 transcript、跳转时间戳,并导出 TXT、SRT、VTT

Generate photorealistic AI images with sharp text, transparent PNG, and SVG exports without account creation.
imagesv2.ai — AI 视觉工具箱,提供透明 PNG 生成、SVG 图标制作、海报转 PSD、文章配图、微信聊天截图、推文截图、抖音/TikTok 直播间模拟、LinkedIn 商务头像、个人风格卡、360° 全景图等任务型工具。

Create ultra-short custom links in bulk with permanent redirects and CSV export.
@SpartA1ah1 · X
Bulk Links just launched on 2R2 Need hundreds of short links at once? Paste your URLs, get a pack of 100 permanent links 5-char slugs at $5/mo or 4-char at $10/mo. No tracking, CSV export included. #buildinpublic #indiehackers

Export JSON data to Excel spreadsheets
@to_excel71850 · X

Free resume builder with 24 templates, live preview, and PDF export—no login needed.
u/Bulky-Walk-2745 · Reddit
I built the cv builder I always wanted to use ⭐ I got tired of cv builders making me create an account, fill out everything, and then asking for money when I just wanted to download my resume. So I started building my own. What began as a small side project has slowly turned into a full resume builder with: • 24 customizable templates • live preview while you edit • ATS match analysis • AI-generated tailored cvs and cover letters • clean PDF export One thing I wanted from day one was

Create diagrams from text using Mermaid, PlantUML, and D2, then export as PNG/SVG.
@soyalexdzul · X
Open-source platform for creating, organizing, and exporting diagrams using plain text markup. It combines the power of Mermaid, PlantUML, and D2 with a polished interface

Generate Excel files with specified row counts, up to millions of rows, for testing data imports and exports.
v2mo · V2EX
生成指定行数的 Excel 文件, 输入行数, 就能快速下载 xlsx 表格文件 后端测试需要用到 Excel 大文件,测试导入、导出。 这个工具用来测试是很顺手了。 [生成指定行数的 Excel 文件, 输入行数, 快速下载 xlsx 表格文件]( https://it365.janqi.com/generate-excel-file-with-specified-number-of-rows/zh/) 看了背后的技术: 使用了 WebAssembly Web Worker 能支持生成一百万行的 Excel 文件,还是有点猛,只是 100w 行,要等几十秒。 还能按规则填充列的数据,也支持插值表达式和随机数,自由度还是不错的。