Video QC for macOS

Stop scrubbing.
Start checking.

Blackspot scans your full video export for black frames, freezes, audio dropouts, glitches — even a misspelled title card — 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

!7 potential issues— review the marks below

Black 2 Audio 1 Color 1 Exposure 1 Flash 1 Skipped 1

Black Frozen Audio Color Exposure Flash 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

00:00:52.000Exposure8.0s

00:01:00.000Black frames0.04s

00:01:08.000Flash / short shot0.4s

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.

It flags nine kinds of trouble — eight render defects in a single pass, plus an on-device check that reads your on-screen text for typos — each pinned to a timestamp and colour-coded so you know what you're walking into.

A solid green render-corruption frame — Color glitch

A washed-out, over-exposed frame — Washed out

A title card with four misspelled words — Misspelled title

Frozen video — held frames where the feed stalled Audio dropouts & clipping — dead air and loud spikes Flash & short shots — a stray clip under a second Dropped frames — skips in raw recordings Corrupt frames — damaged, undecodable frames

On-screen text · 100% on-device

It reads your titles, not just your frames.

A misspelled name card is the one mistake everyone sees and nobody catches in time. Blackspot reads the burned-in text in your video — lower-thirds, titles, captions — and flags the likely typos, right on your Mac.

Catches the typos that ship

A wrong name, “Compting” for “Computing” — pinned to the exact moment it's on screen.

Knows editorial from set dressing

It checks the text you added — not the posters and book spines on the wall behind you — so you're not buried in false flags.

Never leaves your Mac

The text is read and spell-checked entirely on-device. Nothing is uploaded, ever.

A lower-third title card reading 'CEO of Proces Compting Sotfware Deleveopr' — four misspelled words on a real podcast frame

4 misspellings · 23:42

Proces, Compting, Sotfware, Deleveopr — four typos in one card, from a real scan.

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, exposure, flash 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.

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

FAQ

Questions, answered.

Does Blackspot upload my video anywhere?+

No. Everything runs on your Mac — no upload, no account, no servers. Your footage never leaves the machine, so unreleased cuts and clients' raw recordings stay exactly where they are.

What does Blackspot check for?+

Black frames, frozen frames, audio dropouts and silence, audio spikes, color glitches, over-exposed or washed-out sections, stray sub-second flash shots, skipped or dropped frames, and corrupt frames — plus misspelled on-screen text in titles, lower-thirds and captions. Every flag comes back with an exact timestamp.

Will it catch a single black frame?+

Yes. Detection is frame-rate aware, so a single black frame is caught whether the footage runs at 24, 25, 30 or 60 fps — the kind of one-frame flash that's almost impossible to spot by scrubbing.

What do I need to run it?+

A Mac running macOS 11 or later on Apple Silicon. Blackspot reads your export straight from disk, in place — even a multi-gigabyte 4K master — with nothing to set up.

How long does a scan take?+

One pass over the whole file — usually minutes, not the full runtime. You check a handful of timestamps instead of re-watching the entire export.

Does it work with Premiere Pro?+

Yes. A Premiere Pro panel scans your sequence, finds timeline gaps and defects, and drops a clickable marker on each — without exporting or leaving Premiere.

Can it really read on-screen text?+

Yes. Blackspot reads burned-in titles, lower-thirds and captions on-device and flags likely misspellings, so a typo in a name card gets caught before the episode goes out.

Will it flag things that are actually fine?+

Sometimes, by design. Flags are candidates, not verdicts — an intentional intro black or a static slate may show up. You confirm or dismiss each one in the built-in player; the whole idea is to check a few marks, not the entire runtime.

Stop scrubbing.
Start checking.

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

Every way a render goes wrong.

It reads your titles, not just your frames.