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Open MediaSlicr and create a new document. Add a Job, then drag your source file into the input field. Set your split points using the time fields — you can enter exact timestamps or use markers. Configure your output format and naming tokens, then click Run. MediaSlicr will process each segment and write the output files to your chosen folder.

MediaSlicr supports MP3, WAV, M4A, CAF, and AIFF for audio, and MP4, M4V, and MOV for video. You can mix formats across jobs — each job specifies its own output format independently.

MediaSlicr uses a token-based naming system. You build a filename template by combining plain text with %-prefixed tokens — MediaSlicr resolves each token per file at export time, so every segment is named correctly without any manual work.

Date tokens

%yyyy → 2026  ·  %yy → 26  ·  %MM → 04  ·  %M → 4  ·  %dd → 28  ·  %d → 28
%MMM → Apr  ·  %uMMM → APR  ·  %MMMM → April  ·  %uMMMM → APRIL
%EEE → Mon  ·  %EEEE → Monday

Sequential numbering tokens

%n → 1, 2, 3…  ·  %02n → 01, 02, 03…  ·  %03n → 001, 002…
%rn → I, II, III…  ·  %an → a, b, c…  ·  %An → A, B, C…

Weekday-anchored tokens

For week-range naming, tokens can be anchored to a specific day of the week — so a single template can correctly span a Monday-to-Friday range even across month or year boundaries.
%MMMmon → Apr (month of that week's Monday)  ·  %MMMfri → May (month of Friday)
%ddmon → 28  ·  %ddfri → 02  ·  also available for sun, tue, wed, thu, sat

Examples

Morning Show %yyyy-%MM-%dd → Morning Show 2026-04-28

Segment %02n - %EEEE %MMM %dd → Segment 01 - Monday Apr 28, Segment 02 - Tuesday Apr 29…

FPR %yyyy %MM %MMMmon %ddmon-%MMMfri %ddfri → FPR 2026 04 Apr 27-May 01

Episode %An - %MMMM %yyyy → Episode A - April 2026, Episode B - April 2026…

Yes. MediaSlicr can pull metadata from Excel spreadsheets (.xlsx), Word documents (.docx), and plain text files, and write it directly into your output files as embedded tags — title, artist, album, description, episode ID, and more.

Excel spreadsheets

Point your job at an .xlsx file and MediaSlicr opens a column mapping sheet where you assign each spreadsheet column to a metadata field. You pick which sheet to read and which column holds the date (for date-based mode) or let MediaSlicr match rows sequentially. Once mapped, the configuration is saved with your document and runs automatically on every job.

Word & text documents

MediaSlicr reads XML-style tags embedded in your document. Wrap your metadata in short or long tag names — both work:

<ttl>Morning Edition</ttl>  or  <title>Morning Edition</title>
<art>Jane Smith</art>  or  <artist>Jane Smith</artist>
<des>Today's headlines</des>  or  <description>Today's headlines</description>

You can also use any custom prefix — <showTtl>, <myArtist>, etc. — and map it to the right field in the tag mapping sheet.

Two extraction modes

List mode — MediaSlicr reads entries top to bottom and matches them to output files in order. File 1 gets entry 1, file 2 gets entry 2, and so on. Simple and predictable.

Date mode — Each entry in your document includes a date tag (<air>, <broadcastDate>, <pubDate>, etc.) and MediaSlicr matches each output file to the entry whose date corresponds to that file's air date. This means your document can be in any order, entries can be added over time, and reprocessing old files will always pick up the right metadata.

The document path itself supports the same naming tokens as output files — so Scripts/%yyyy/%MMMmon %ddmon-%ddfri.docx will automatically resolve to the right document for each week's batch.

Yes, MediaSlicr is fully sandboxed. The first time you point a job at a folder — whether on your internal drive, an external drive, or a network share — macOS will ask you to confirm access. Once granted, MediaSlicr saves a security-scoped bookmark so it can access that location in future sessions without prompting again.

Yes. A MediaSlicr document can contain multiple jobs, and when you run the document all jobs execute in parallel using Swift concurrency. Each job processes its own set of files independently, so a five-job document isn't five times slower than one job.

Each job has its own output folder setting. You can set this to any folder you have access to. The auto-format path feature lets you build a folder path using the same tokens as filenames — so you can automatically sort output into subfolders by date, show name, or any other metadata field.

Email support@mediaslicer.com with a description of what happened, what you expected, and if possible the steps to reproduce it. Screenshots or screen recordings are always helpful. Feature requests are very welcome — they directly shape what gets built next.