Open Source GPLv3 Flutter / Dart Windows Android Linux macOS

Convert The Spire Reborn

The Cleanest Way to Download YouTube Playlists.

Free, open-source. Download individual videos or massive playlists in true 4K/8K. Built by Lukas Bohez. 950+ downloads across 95+ countries.

100+ video downloads — **100+ video proof**Real screenshot of the playlist download workflow.

Search view — **Search + queue**Find content fast and add items in one click.

Playlist manager — **Full playlist downloads**Queue and grab 100+ videos without babysitting.

Quick downloads — **Quick song downloads**Add fresh tracks fast, keep progress organized.

Settings page — **Full customization**Fine-tune folders, formats, workers, and output.

**Built-in guide**Learn every feature with clear in-app documentation.

Built-in media player — **Integrated media player**Preview and manage downloads without switching tools.

**Usage stats**Track converted playlists and total videos processed.

**Torrent workflow**Manage torrent tasks with legal-use guidance.

v10.8.2: Improved crash resilience for long-running sessions
v10.8.2: BitPlayer fully integrated across desktop and mobile
Unified Convert + BitPlayer workflow on desktop and mobile
Published SHA256 checksums for binary verification

Built-in browser with smart URL handling & ad blocking
Download from 1,800+ sites via yt-dlp — 1080p, 320 kbps
Convert between 27+ formats — docs, images, archives & media
DLNA / UPnP casting to any TV, speaker, or receiver
Built-in media player with playlists, queue & library
100% open-source under GPLv3 — files never leave your machine

Windows Android Linux macOS

Why does Windows show a warning?

Windows SmartScreen warns about unsigned software — normal for indie apps not code-signed (~$200/year). The app is 100% open-source under GPLv3.

To run: click "More info" → "Run anyway."

Learn more View source Verify checksums Supporters Project pictures Portfolio Support chat

Release Notes Latest release April 23, 2026

Improved crash resilience — latest release

The app is more resilient in long-running sessions.

ConvertTheSpireReborn-windows-x64.zip — 38.5 MB
ConvertTheSpireReborn-linux-x64.zip — 25 MB
ConvertTheSpireReborn-macOS.zip — 64 MB
ConvertTheSpireReborn.apk — 287 MB
ConvertTheSpireReborn.aab — 157 MB
SHA256SUMS.txt — 543 Bytes

View on GitHub All releases

Integrated v10.8.2 Flutter / Dart Windows Android

BitPlayer: Torrent & Media

Now part of Convert The Spire Reborn v10.8.2.

Integrated into Convert as the torrent + media hub
Advanced background playback for podcasts, lectures, and music
Bluetooth media controls for headset and car playback
Fast local folder loading for large media collections
Built-in browser, bookmarks, history, incognito mode, torrent manager
Testing group continues for BitPlayer feedback

Get on Google Play Open Convert page Join test group BitPlayer details

Status: BitPlayer is part of Convert The Spire Reborn v10.8.2.

Background music Direct download Chrome Firefox

Lofi Extension

Ambient music controls for your browser.

Play relaxing lo-fi while you work
Download for Chromium or install Firefox add-on
Privacy-first with no tracking

Download Extension Firefox Add-on Chromium ZIP

Next.js Portfolio

A modern, recruiter-ready developer portfolio built with Next.js, React, and TypeScript. Showcasing open-source projects, cross-platform apps, AI tools, and full-stack engineering work — all deployed and live.

Portfolio GitHub

AI Music Generator Browser-only MIDI export

MIDIComposer

AI-powered MIDI music generator.

Pick a scene and intensity, generate a prompt for Claude, ChatGPT, or Gemini. Paste the JSON response back to preview and download as a full multi-track MIDI file.

8 scene presets — Anime, Lo-fi, Cinematic, J-Pop, RPG, Synthwave, Lounge, Action
3 intensity levels per scene — from calm to epic
Full multi-track MIDI with melody, chords, bass, arp, and drums
Invisible watermark proves the file was made with this tool
Copyright metadata written into every export
Everything runs in your browser — no server uploads

Open MIDIComposer

Built by Lukas Bohez · All generated music is yours to use

Quiz & Games

Compete in real-time multiplayer quizzes with thousands of community-created themes. Or jump into word puzzles and idle games — all free.

SpireAI — AI-Powered Quiz Creator

Create and play real-time multiplayer quizzes. Teachers build quizzes instantly from text. Students compete on live leaderboards.

Launch SpireAI Portfolio

Tools & Content

One focused workspace for creation, publishing, analytics, and app distribution.

Create interactive stories and structure branching flows. Read and manage serialized stories from your content hub. Browse guides and long-form article content. Export SVGs, PNGs, text, variables — AI-ready for LLMs. Driving exam prep for Roeselare — 20 routes, 60+ checkpoints. AI-powered MIDI music generator. Pick a scene, download MIDI.

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