Apps, games and experiments.

Compress images to a chosen file-size limit.

Convert HEIC, JPEG, PNG, TIFF and WebP images.

Adjust photos and apply the same edits to a batch.

Inspect EXIF metadata and remove GPS location from photos.

Make a contact sheet from a folder of images.

Add a text or logo watermark to images.

Measure audio loudness, spectrum and peaks.

Normalize, trim and fade a batch of audio files.

Convert audio formats, sample rates and channel layouts.

Arrange, trim and mix audio on a multitrack timeline.

Record microphone input, Mac system audio or both.

Edit music tags, album information and cover artwork.

Write music with patterns, samples and synths in a tracker.

Transcribe video speech and edit timed captions.

Reduce video file size towards a chosen target.

Convert video formats, codecs, resolutions and frame rates.

Screen recording for a display, window or region, with audio.

Compress PDFs to a chosen size limit and preview the result.

Convert PDFs, images, selectable text and Markdown.

Make scanned PDF text searchable with OCR.

Merge, split, extract, rotate and reorder PDF pages.

Password-protect PDFs or remove a password you know.

Remove sensitive PDF content and verify the result.

Turn Markdown into PNG cards for sharing.

Combine text files for AI context with a token estimate.

Keep a daily journal, habits and ongoing notes.

Apply rules to sort, rename, archive or trash files.

Convert PDF, Word, PowerPoint and web pages to Markdown.

Search text across your chosen Markdown folders.

Extract text from a screen region with local OCR.

Capture quick notes into a daily Markdown file.

Preview Markdown in Finder Quick Look and open files to edit.

Convert copied HTML or rich text to Markdown.

Present Markdown slides with audience polls and questions.

Build HTML pages from Markdown for your chosen web host.

Sync Markdown folders locally or through iCloud Drive.

Save old Safari tab titles and URLs, then close the tabs.

Collect note checkboxes and update tasks in their source files.

Export Markdown to PDF, HTML, LaTeX or rich text.

Save Safari article text as Markdown and try to download images.

Edit Markdown with live preview, an outline and wikilinks.

Scan and catalogue a physical vinyl and CD collection.

Plan reading, writing, drawing, sudoku and walks on iPhone and iPad. Available on the App Store.

Make and share mixtapes with stories about the songs.

Inspect and clean text, metadata and copied-file residue.

Build websites locally and publish to Cloudflare Pages.

Monitor camera motion with zones, event clips and alerts.

Track sightings of Bluetooth, network and Meshtastic devices.

Preview and apply new names to a batch of files.

Keep files, folders, links and text within reach.

Inspect storage usage with local scans and scan history.

Move, copy or rename matching files as they arrive in a folder.

Use an iPhone as a control deck for your Mac.