🎵 YouTube Music Auto Liker

Automatically like all songs from a playlist in YouTube Music
A small browser script for people who migrated from Spotify and ended up with an empty Liked Songs section.

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Why this exists

I moved from Spotify to YouTube Music using a transfer tool.

Playlists transferred fine.
My Liked Songs didn’t.

Everything landed in a regular playlist, and YouTube Music offers no way to like tracks in bulk.
There is no “Like all” button, and clicking the 👍 icon hundreds of times manually wasn’t an option.

Old Reddit script didn't work for me well, so I fixed that existing script, cleaned it up, and made it behave more like a real user.

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What this script does

• 👍 Likes all unliked tracks in the current playlist
• 🧍 Scrolls to each track before clicking (required for YTM)
• ⏱ Uses a random delay (1–2 seconds) between likes
• 🖥 Runs directly in the browser console
• 📦 No installs, no extensions

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Important limitation

⚠️ This matters

YouTube Music only loads part of a playlist into the page.

If a track is not loaded on screen, the script cannot interact with it.
You must scroll the playlist to the bottom before running the script.

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How to use

Step 1 — Open YouTube Music

Use Chrome, Edge, or any Chromium-based browser.

Step 2 — Open your playlist

This should be the playlist containing the tracks you want to like.

Step 3 — Scroll to the bottom

Scroll until new songs stop loading.

💡 Skipping this step will cause some tracks to be missed.

Step 4 — Open DevTools

• Press F12
• or right-click → Inspect
• Switch to the Console tab

Step 5 — Paste the script

Copy the script below (or from script.js) and paste it into the console.

If Chrome shows a warning, type:

allow pasting

and press Enter.

Step 6 — Run it

Press Enter and wait.
The script will like songs one by one.

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Script

async function autoLikeSongs() {
    console.log("Starting process...");

    const unlikedButtons = Array.from(
        document.querySelectorAll(
            'button[aria-label="Like"][aria-pressed="false"], ' +
            'button[aria-label="Like music"][aria-pressed="false"]'
        )
    );

    if (unlikedButtons.length === 0) {
        console.log('No unliked songs found.');
        console.log('Make sure you scrolled to the very bottom of the playlist.');
        return;
    }

    console.log(`Found ${unlikedButtons.length} songs to like.`);

    for (let i = 0; i < unlikedButtons.length; i++) {
        const btn = unlikedButtons[i];

        try {
            btn.scrollIntoView({ behavior: 'smooth', block: 'center' });
            await new Promise(r => setTimeout(r, 100));

            console.log(`[${i + 1}/${unlikedButtons.length}] Liking song...`);
            btn.click();

            const delay = 1000 + Math.random() * 1000;
            await new Promise(resolve => setTimeout(resolve, delay));
        } catch (e) {
            console.error(`Error on song ${i + 1}`, e);
        }
    }

    console.log('Done. All loaded songs should now be liked.');
}

autoLikeSongs();

Large playlists

For very large playlists:

• Scroll to the bottom

• Run the script

• Scroll further

• Run it again

• Repeat until everything is liked.

Disclaimer

This is an unofficial workaround. Use at your own risk.

Credits

Based on a community script from Reddit, refined and documented from real usage.