Video QC for macOS

Stop scrubbing.
Start checking.

Blackspot scans your full video export for black frames, freezes, audio dropouts and glitches — then hands you the exact timestamps to verify. Minutes, not the whole runtime.

Download for Mac See what it catches →

100% on-device Your footage never leaves your Mac No uploads, no cloud

Blackspot·Yalla — Episode 12.mp4

1280×720 · 25 fps · 01:35

!5 potential issues— review the marks below

Black 2 Audio 1 Color 1 Skipped 1

Black Frozen Audio Color Skipped

0:000:190:380:571:161:35

00:00:22.000Black frames0.52s

00:00:30.000Audio dropout1.9s

00:00:44.000Color glitchgreen

00:01:00.000Black frames0.04s

00:01:19.960Skipped frames13 fr

at 00:00:30

00:00:30.000 / 01:35.000

A real scan in one pass — 5 marks to check, not the whole runtime to watch.

The problem

You can't watch all of it. Not again.

A long export hides tiny failures — a single dropped frame, a second of silence, a green flash where the render choked. They slip past a tired eye at 2 a.m., and they ship. Scrubbing the whole runtime in real time to catch them is a tax on every release.

a frame that went black two seconds of silence a magenta corruption flash frames the recorder dropped a picture that froze

A black frame lasts 1/25th of a second. Blackspot finds it anyway.

What it catches

Every way a render goes wrong.

One scanning pass looks for six classes of defect — each pinned to a timestamp, each colour-coded so you know what you're walking into.

Black frames

BLACK

Drops to black, down to a single frame. Catches dropouts and hard cuts that flash through black.

Frozen video

FROZEN

A stuck or frozen picture that should be moving — held frames where the feed quietly stalled.

Audio trouble

AUDIO

Dead air where the track drops to silence, plus loud spikes and clipping judged against your program’s own loudness. It catches the gaps a tired ear skims past — without flagging an ordinary quiet beat.

Color glitches

COLOR

Solid green, magenta or blue render corruption — flat, full-frame glitches that real footage never produces.

Dropped frames

SKIPPED

Skipped frames in the timeline — common in raw Riverside, Zoom and OBS recordings — located right to the timestamp.

Corrupt frames

DECODE

Undecodable, damaged frames from a bad export or a corrupted file — the ones that crash a player mid-stream.

How it works

Three steps. One pass. Done.

Point it at a file

Choose any export — even a multi-gigabyte 4K master. Blackspot reads it straight from disk, in place. Nothing is copied, nothing is uploaded.

One fast scan

It sweeps the entire runtime in a single pass, flagging every suspect moment — black, frozen, audio, color and dropped frames, all at once.

Check the marks

Jump straight to each timestamp in the built-in player. Confirm or dismiss, mark it reviewed, and export a clean report for the team.

Your footage never leaves your Mac.

Blackspot runs entirely on your machine. No accounts, no servers, no upload step — your unreleased work, your clients' raw recordings, your embargoed cut: they stay exactly where they are. The whole scan happens on-device.

No upload, ever No account required Works fully offline

Built for the review, not just the scan

A player that takes you straight to the problem.

Synced player & timeline

Click any mark or row and the player jumps to the exact frame. Confirm in seconds.

Confidence badges

Every flag is graded high / medium / low, so you triage the real risks first.

Mark reviewed & false positives

Tick off what you've checked. Your marks persist when you reopen the scan.

Export a report

Hand off a clean list of timestamps as TXT, JSON or CSV — or copy them in one click.

Keyboard-first

Arrow through flags, space to play, one key to mark reviewed. Built for speed.

A flagged moment open in the Blackspot player

AUDIO · 00:00:30.000

Premiere Pro plugin

Spot the gaps. Catch the dropouts. Never leave Premiere.

A Blackspot panel that lives right inside Premiere Pro. Scan your selected clips for black frames and audio dropouts, and check the sequence for the empty gaps that sneak in when a clip gets moved — then it drops a clickable, color-coded marker on each one, right on your timeline. No export. No second app.

The Blackspot panel docked inside Premiere Pro — a Scan button and a list of issues with timestamps: a gap, a black section and an audio dropout. — Scan right from the panel

A Premiere Pro sequence with Blackspot markers on the timeline ruler — a red gap marker, a white black-frame marker and an orange audio-dropout marker. — Markers land on your sequence · **red** gap · **white** black · **orange** dropout

Scan clips or the whole sequence

Scan selected clips for black frames and dropouts, or check the sequence for empty gaps — across every video track, so a hole hiding under another layer still gets caught.

Color-coded markers, one click away

Each issue becomes a labeled marker on the ruler — red for gaps, white for black, orange for dropouts. Click one to jump straight there.

Stays on your machine

It reads your edit and your media on-device. Nothing is uploaded — the whole check happens locally.

Get the Premiere plugin

For Premiere Pro 25.6+ · Installs via Creative Cloud

Stop scrubbing.Start checking.