Free Tools for Client Review & Approval
Fast, free utilities for video, audio, images & PDF — the multi-format review & approval platform, no per-seat fees.
2:3 Pulldown Cadence Diagram
Scrub field by field through 2:3 pulldown to see how 4 film frames at 23.976 fps become 5 interlaced video frames at 29.97 fps — the two dirty frames highlighted, TFF/BFF explained.
Use ToolAspect Ratio Calculator
Solve width or height from a ratio, simplify any resolution to its aspect ratio, and preview crop vs letterbox between ratios.
Use ToolAudio Clipper
Trim, extract, or split an audio file by duration — set a start and end and keep just that part.
Use ToolAudio Clipping Detector
Find clipped, distorted samples in any audio file — with timestamps, severity and a clean/severe verdict.
Use ToolAudio Compressor
Compress audio files to reduce size. Perfect for sharing and storage optimization.
Use ToolAudio Equalizer
Adjust frequency bands to shape your audio. Professional EQ presets available.
Use ToolAudio Metadata Editor
Edit ID3 tags and metadata in your audio files. Update title, artist, album, and more.
Use ToolAudio Metadata Viewer
View ID3 tags, bitrate, sample rate, and other metadata from your audio files.
Use ToolAudio Noise Reducer
Remove background noise from audio — strip hiss, hum and room noise from voice recordings, with a measured before/after noise floor.
Use ToolAudio Spectrum Analyzer
Visualize the frequency content of your audio with spectrograms and frequency analysis.
Use ToolAudio Track Storage Calculator
Calculate exact uncompressed PCM audio file size from sample rate, bit depth, channel count and duration — decimal MB/GB with a binary MiB/GiB readout, a per-channel stacked-bar breakdown, and a live WAV 4 GB limit check.
Use ToolAudio Transcription
Transcribe audio to accurate text with word-level timestamps — export as TXT, SRT, VTT or JSON.
Use ToolAuto Subtitle Generator
Generate subtitles from any video with AI — clean, properly timed captions downloadable as SRT or VTT.
Use ToolBPM Detector
Detect the beats per minute (BPM) and tempo of your audio. Perfect for DJs and musicians.
Use ToolBitrate Converter
Change audio bitrate to optimize file size and quality. Support for various bitrate options.
Use ToolBroadcast Leader Builder
Lay out a broadcast leader — bars & tone, slate, black and a 2-pop — before program start, and get an exact, frame-accurate in/out timecode for every segment at any rate.
Use ToolCPL Line-Length Checker
Paste subtitle lines and check each against Netflix, BBC and CJK characters-per-line limits on a visual ruler, with an exact overflow count for every line that's too long.
Use ToolCall Sheet Generator
Build a professional call sheet with crew, cast, schedule, call times and locations — then export a client-ready CSV or printable PDF.
Use ToolCaption Burn-In Tool
Burn subtitles into your video — upload an MP4 and an SRT or VTT file and download a video with open captions baked in.
Use ToolCompress Video to Size
Compress a video to an exact target size — 8MB for email, 10MB, 25MB or a custom size — with two-pass encoding that hits the number.
Use ToolCreative Brief Generator
Fill a proven creative-brief template — objective, audience, message, deliverables and timeline — then export a client-ready PDF.
Use ToolDF/NDF Subtitle Timecode Converter
Convert subtitle timecodes between drop-frame and non-drop at 29.97 or 59.94 fps, with per-line validation and a drift annotation showing how far NDF has slipped from the wall clock — free, instant, in your browser.
Use ToolFile Transfer Time Calculator
Turn a file size or production preset into a realistic transfer time — sustained (not advertised) connection speeds, dual MB/s and Mbit/s readouts, milestone ETAs, and a live ship-a-drive crossover — free, in your browser.
Use ToolGamma / EOTF Curve Comparator
Compare sRGB, gamma 2.2, gamma 2.4, PQ and HLG display transfer curves overlaid on one chart, with a signal slider that reads out every curve — including PQ's absolute nits — from the exact standard formulas, free and in your browser.
Use ToolGamut Overlap Calculator
Compare any two color gamuts — Rec.709, DCI-P3, Rec.2020, Adobe RGB, ACES AP1, ARRI Wide Gamut 4 — as triangles on a CIE diagram, with real overlap area and directional coverage percent computed in xy and u′v′.
Use ToolISDCF DCP Name Generator
Build a spec-correct ISDCF DCP composition name field by field — title, content type, aspect, language, territory, audio, resolution, studio, date, facility, standard and package type — with a live, color-coded preview. Free, no upload.
Use ToolLUFS Meter
Measure integrated LUFS and true peak, plot your master against every platform's loudness target on one ruler, and get the exact gain offset to hit it.
Use ToolLog Curve Comparison Plotter
Overlay ARRI LogC3, LogC4, Sony S-Log3, Panasonic V-Log and RED Log3G10 on one exposure chart from their published formulas, and read every curve's signal at any stop — free, no upload.
Use ToolMemory Card Record Time Calculator
See how long a memory card really records at each codec's nominal bitrate — a capacity × codec heatmap with the full byte-to-bitrate math one click away.
Use ToolMono to Stereo Converter
Convert mono audio files to stereo format for a fuller sound experience.
Use ToolMulticam Sync Offset Calculator
Enter what each camera's timecode read at a shared clap or flash and get the exact signed offset between them, plus a converter for any timecode in between — drop-frame handled correctly.
Use ToolNetflix CPS Reading-Speed Checker
Check a subtitle event's reading speed (CPS) against Netflix's per-language ceiling — paste the text and timing, see the worked formula and a pass/fail verdict.
Use ToolNoise Floor Analyzer
Measure your audio's noise floor, room tone and signal-to-noise ratio in dBFS — with an instant clean/noisy verdict.
Use ToolOffload & Checksum Time Calculator
Estimate how long it really takes to copy a card, verify the checksum and make a second backup. Enter your footage size and source/destination interfaces to see a Gantt chart with the governing bottleneck named on every bar.
Use ToolOpen-Gate Crop Calculator
Pick a camera's open-gate mode, crop every target aspect from one sensor, and see crop resolution, % of frame retained, and upscale warnings against real delivery rasters.
Use ToolPixel Aspect Ratio Converter
Convert stored resolution and PAR into true displayed frame size, with exact-rational presets for NTSC/PAL DV, D1, HDV, DVCPRO HD and anamorphic 2x.
Use ToolPlatform Delivery Spec Card
Pick Netflix, Prime Video, Apple TV+, Disney+, YouTube or BBC/DPP and get its delivery spec as one card — codec, loudness, captions, start timecode. Free.
Use ToolPost-Production Schedule Planner
Enter a delivery date and stage durations — walks backward through QC, export, buffer and review rounds to the real edit start date.
Use ToolPremiere Pro Caption Checker
Check captions for Premiere Pro and broadcast specs — characters per line, lines per cue, reading speed (CPS) and cue duration.
Use ToolReading Speed Test
Test your reading speed in words per minute — read a timed passage or paste your own text and see how you compare.
Use ToolSMPTE Color Bars Code Value Chart
Rendered SMPTE color bars with every R'G'B', Y'CbCr and code value computed live for your bit depth, range and matrix — click a patch for the exact numbers, free and instant.
Use ToolSRT Validator
Check an SRT file for format errors — numbering, timestamps, overlaps and encoding — and auto-fix them, then download a clean .srt.
Use ToolSRT to TXT Converter
Extract clean plain text from an SRT or VTT subtitle file — strip timestamps and numbers, merge into paragraphs, and download a .txt.
Use ToolSRT to VTT Converter
Convert SRT subtitles to WebVTT (.vtt) in your browser — preview the cues and download a valid .vtt for HTML5 video.
Use ToolSample Rate Converter
Convert audio sample rate. Change between 44.1kHz, 48kHz, and other sample rates.
Use ToolScript Timer
Time your script read live — paste a script, set a speaking pace and watch the clock, then see the actual WPM you read.
Use ToolShooting Schedule Builder
Order your scenes into shoot days with location, INT/EXT, cast and timing — then export a client-ready CSV or printable PDF.
Use ToolShot List Builder
Build a professional shot list in your browser — add scenes, shot sizes, angles and movement, then export a client-ready CSV or printable PDF.
Use ToolSilence Trimmer
Automatically trim dead air and tighten long pauses in an audio file for a cleaner, more professional cut.
Use ToolSocial Video Resizer
Resize video for Instagram, TikTok, Reels and YouTube — change the aspect ratio to 9:16, 1:1, 4:5 or 16:9 by cropping or adding bars.
Use ToolStereo to Mono Converter
Convert stereo audio files to mono. Essential for podcasters and voice recordings.
Use ToolStoryboard Creator
Create a storyboard online — sketch or upload frames, add shots, dialogue and camera moves, then print to PDF. Free, with a blank template and example.
Use ToolSubtitle 2-Frame Gap Calculator
Check the gap between two subtitle events in frames and milliseconds against the 2-frame minimum, with pass/fail verdicts and a mini-timeline — free, instant, runs in your browser.
Use ToolSubtitle Resync Tool
Resync out-of-sync subtitles — shift all cues by an offset or stretch the timing for a new frame rate, for SRT and VTT.
Use ToolTXT to SRT Converter
Convert plain text to a timed SRT subtitle file in your browser. Paste your script, set timing rules, preview the cues and download your .srt — free.
Use ToolTimecode Calculator
Add and subtract SMPTE timecodes, convert timecode to frames or real duration, and switch between 23.976, 24, 25, 29.97 drop-frame and 60 fps — free, right in your browser.
Use ToolTimecode Drift Calculator
See exactly how far non-drop timecode drifts from the wall clock as a program runs — an SVG chart with drift markers at 30 s, 22 min, 44 min, 90 min and 2 hours, a movable custom-length marker, and the drop-frame comparison line, free in your browser.
Use ToolTimecode Frame-Rate Converter
Convert a timecode between frame rates two ways: the same real-world moment, or a conform that relabels the same frame number — with drop-frame handled correctly.
Use ToolTimecode ↔ Wall-Clock Calculator
Convert time-of-day timecode to the real wall-clock moment it represents, or the reverse — at 23.976, 24, 25, 29.97 drop-frame/non-drop-frame and 30 fps, with NDF drift computed via the exact 1.001 ratio, free in your browser.
Use ToolUHD vs DCI 4K Resolution Chart
See every standard raster from NTSC SD to 8K as true-to-scale nested rectangles, with exact dimensions, aspect ratio, megapixels and % of UHD's pixel count for each.
Use ToolVTT to SRT Converter
Convert WebVTT (.vtt) subtitles to a clean, renumbered SRT — strips web styling and cue settings, in your browser.
Use ToolVideo Bitrate Calculator
Pick resolution, frame rate and codec to get the recommended encoding bitrate — plus an estimated file size for any duration.
Use ToolVideo File Size Calculator
Estimate video file size from a codec preset — ProRes, DNxHR, XAVC or H.264 at your resolution and frame rate — or from any bitrate, or backwards from a target size.
Use ToolVideo Transcription
Transcribe video to text with AI — upload an MP4 or MOV and download an accurate transcript with timestamps.
Use ToolVoice Over Word Count Calculator
Find how many words fit a 15, 30 or 60-second voice over — enter the duration and pace to get your script's word budget.
Use ToolVoice Quality Analyzer
Score voice recording clarity 0–100 with specific fixes — checks volume, clipping, loudness, noise and pauses.
Use ToolVoice Recorder
Record audio directly in your browser. Perfect for voice memos, podcasts, and quick recordings.
Use ToolVolume Normalizer
Normalize audio to a target loudness (LUFS) for podcast, YouTube, broadcast or streaming — single file or batch.
Use ToolWaveform Generator
Generate visual waveform images from your audio. Multiple color styles available.
Use ToolWords to Minutes Converter
Convert words to minutes of speaking time instantly. Paste a script or enter a word count to see narration length at slow, conversational and fast speaking rates.
Use ToolReady for more?
Sign up for VoiceDeck to get unlimited access to every tool, plus multi-format client review & approval for video, audio, images & PDF.