Free Tools
Free tools for stem delivery
Fast, free browser tools to help you check and prepare your stems before you send them. Everything runs locally on your machine — nothing is uploaded.
Available now
Stem Checker
Drop up to 30 stems and instantly check for clipping, silent stems, length mismatches, sample-rate and bit-depth inconsistencies, dual-mono exports and duplicates. Runs entirely in your browser.
Delivery Sheet Generator
Create and share a professional stem delivery checklist for your clients. Publish one clean link, then download it as a PDF.
Loudness Meter
Measure integrated LUFS, short-term, momentary, loudness range and true peak for a batch of tracks against Spotify, Apple Music, YouTube and broadcast targets. ITU-R BS.1770 / EBU R128.
Coming soon
Stem Batch Renamer
Drag and drop a folder of audio files and use batch renaming options to quickly standardise filenames. Add prefixes or suffixes, replace text, remove unwanted characters, apply consistent formatting, and preview changes before downloading the renamed files.
Stem Delivery Checklist
Work through an interactive checklist covering the most common stem delivery requirements, including file formatting, alignment, naming, levels, and exported tails. The tool tracks progress and confirms when the delivery is ready to send.
Delivery Folder Generator
Enter key delivery details such as artist, project name, version, date, and delivery type. The tool automatically generates a clean, professional folder structure for organising stems, mixes, multitracks, references, documentation, and other deliverables. Customise the structure before downloading it as a ready-to-use folder template.
Stem Duration Checker
Upload a batch of audio files and compare the duration of every file, highlighting any stems that are shorter or longer than the rest. Spot common export issues such as missing intros, cut-off reverb tails, or incorrectly exported stems before delivery.
Audio File Size Calculator
Enter the audio format, sample rate, bit depth, channel count, duration, and number of files. Instantly calculate the estimated file size for each file and the total delivery size — useful for estimating storage requirements before exporting or sharing audio.
Audio File Inspector
Upload an audio file to instantly view its technical properties, including sample rate, bit depth, channel count, duration, file size, and embedded metadata where available. Get a quick overview of the file without opening a DAW.
Stem Organiser
Upload a batch of audio files and the tool automatically organises them into a clear, structured folder based on common categories such as Drums, Bass, Vocals, Instruments, FX, and References. Review the organisation before downloading the new folder structure.
Reverb Decay & Delay Time Calculator
Enter a project BPM to instantly calculate delay times and suggested reverb decay lengths for common note values, including straight, dotted, and triplet timings. Copy the results directly into plugins without manual calculations.
BPM Finder & Tempo Tapper
Upload an audio file to automatically detect its BPM, or tap along with the keyboard, mouse, or touchscreen to calculate tempo manually. Get a quick, accurate BPM estimate you can copy straight into a DAW or production workflow.
Key Finder
Upload an audio file and the tool automatically analyses it to estimate the musical key and scale. The detected key is shown alongside alternative matches where appropriate, ready to copy into a DAW or production workflow.
Track Analyser
One place for key detection, BPM finding, and technical file inspection — combine the Key Finder, BPM Finder, and Audio File Inspector into a single track overview.
Device Preview
Preview how your track sounds under different listening conditions with one click — switch between iPhone speakers, in-car listening, headphones, and studio monitors to hear how a mix translates before you deliver.