Parallely - Side by Side

Put two photos or videos side by side and see the difference instantly. Pay once and it's yours: no subscriptions, no ads and no account.

Parallely makes it easy to compare your golf swing with a pro's, show a before and after, or build a reaction video in seconds. Trim each video to the moment that matters, then watch both sides play in sync, frame by frame or in slow motion.

What You Can Do:
• Compare in Sync: Trim each video to its key moment and both sides play together.
• Review Every Frame: Play, pause, scrub, step one frame at a time, and slow down to 0.5x or 0.25x.
• Combine Media: Place 2 photos, 2 videos, or one of each, side by side or stacked.
• Customize: Zoom and pan, adjust borders, add your logo, and set volume and playback order.
• Share Anywhere: Export in 1:1, 4:5, 9:16 or 16:9 and post to social media, Messages, email and more.

Great For:
• Coaches and athletes reviewing swings, form and technique
• Fitness and transformation progress
• Before and afters for home, beauty and design projects
• Creators making reaction and comparison videos

Why Parallely?
• Pay Once, Own It: No subscriptions, no trials and no upsells.
• No Ads. Ever.
• Private: No account needed, and your photos and videos stay on your device.
• Fast and Lightweight: Built for speed, not clutter.

Have a question or an idea? Reach out to [email protected] and we'll get back to you.