
Free Piano Tool - 88-Key Online Piano with A440 & Metronome
Play a free 88-key online piano with A440 concert pitch, key labels, and a built-in metronome. Mobile-friendly, no download required.
@StepintoBEra · X
Mine is free, btw.
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Play a free 88-key online piano with A440 concert pitch, key labels, and a built-in metronome. Mobile-friendly, no download required.
@StepintoBEra · X
Mine is free, btw.

Free Praxis 5001 readiness diagnostic: 12 original questions across all four subtests, an estimated scaled score, and your weakest gate - free.
@vinsin_hu · X

Collection of 125+ free calculators for finance, health, legal, real estate, and travel—no signup required.
@Arafat3599651 · X
Just launched 🧮 125+ free calculators — mortgage, BMI, debt payoff, compound interest, calories & more. No signup. No ads. Everything runs in your browser instantly. #buildinpublic #webdev #react

AI-powered platform for managing music careers with analytics, playlist pitching, and press kit tools.
@GrYoT · X
A manager for independent musicians. instead of juggling like 5 tools for analytics, playlist pitching, content scheduling, booking etc, you just talk to it like you would a real manager and it pulls your actual data and does the busywork

Canvas for inspecting LLM weights tensor-by-tensor with quantization error and distribution analysis.
alesha-pro · GitHub
atlas Interactive canvas for taking an LLM apart tensor by tensor: measured INT8/INT4/FP8 error, distributions, spectra and outlier channels for every weight tensor

Generate chord progressions by choosing key, style, and mood with instant audio preview.

Discover and play songs on a competitive music chart that ranks by visitor engagement.
@SongOnTopMusic · X
SONG ON TOP is not a streaming platform. It sells one thing, clearly: a visible public position in a music chart. No fake promises. No hidden voting. One #1.

Create editable music with AI-generated patterns in your browser.
@ferdousbhai · X
Vibe coding for music production is here. Open source, runs entirely in your browser. With AI music, typically you get audio you can't edit directly with fine-grain control. But with a Web Audio framework like strudel, the AI writes live-coding patterns and the code is the music.

AI audio editor and music generator for editing, shortening, and creating music from text or audio files.
audjust.ai — 智能音频编辑与 AI 音乐生成工具,帮助处理音频文件(智能缩短歌曲、延长音频、寻找完美无缝循环)并从文字描述、歌词或图片生成完整音乐轨道。支持多种风格,内置 MIDI 编辑器、音轨分离、Lo-fi 转换等专业工具。

Upload a car video and music track to generate beat-synced vertical edits automatically.
u/Jonathanproductions · Reddit
We built a tool that automatically edits car videos to phonk beats... here's what it makes We've been building MACHCUT for the past few months. Drop in raw car footage and a phonk track and it produces a beat-synchronized vertical edit automatically. Python engine, not generative AI. Your real footage, automated cutting. The engine runs on A100 GPUs, uses YOLO to pick the best clips from your footage, locks cuts to the beat drop, and outputs vertical 1080p or 4K in about 6 min

Play and create music from audio clips, hummed melodies, or voice input.
@HappyMonkeyAI · X
Been building so many cool things recently, like Riffly 🎸Hear something cool? Play it in seconds. 📷Drop in a clip, hum a melody, or use your mic. 📷

Test game controller buttons, sticks, triggers, and vibration in your browser with drift and latency analysis.
Gamepad Tester — 游戏手柄测试与诊断工具(免费),可实时检测手柄按键、摇杆、扳机键和震动,并提供摇杆漂移、Circularity、Polling Rate、Latency、Button Mapping,以及 Xbox、PS5、Joy-Con、Switch Pro 等专项测试