ConvertLogic Pro
ConvertLogic Pro unlocks the full power of our file conversion suite in two ways: a blazing-fast Tauri + Rust desktop app for unlimited offline batch processing, and an ad-free experience on convert.logicapplabs.com. No file size limits, no browser memory caps, and complete privacy.
Key Features
- Ad-Free Web Access on convert.logicapplabs.com
- 100% Offline Desktop App — No Internet Required
- Native Multi-Threading with Rust & Tauri
- Massive Batch Processing — Hundreds of Files at Once
- Zero File Size Limits — No 15MB Browser Constraints
- All 24 Conversion Tools Included
- YAML, JSON, TOML, CSV Compilers
- WAV & MP4 Compression Engine
- PDF Page Splitter & Merger
- PNG/JPEG/WebP Image Converter
- Cross-Platform: Windows, macOS, Linux
- Lifetime License with Free Updates
per license · Lifetime updates included
Try free at convert.logicapplabs.com
What the license actually changes
Every converter on convert.logicapplabs.com is free and stays free. The license changes two things: the ads come off the web version, and you get the desktop build that is not bound by browser limits.
That second part is the one people underestimate. A browser tab has a hard memory ceiling and the WASM codecs have to hold both the input and the output in that ceiling at once. In practice a single video over roughly 100 MB, or a batch of a few hundred images, will hit it and the tab dies mid-run. The desktop build runs native Rust with real threads against your filesystem, so the limit is your disk, not a sandbox.
Where batch mode earns its money
The web tools handle one job at a time because that is the honest thing a tab can do. The desktop app takes a folder. Point it at 400 client PNGs and pick JPEG at quality 82 with a white matte, and it works through them on every core you have rather than one at a time in a single JavaScript thread.
The same applies to the structured-data side. Converting a directory of YAML manifests to JSON, splitting a stack of scanned PDFs on page breaks, or normalising a quarter of CSV exports into one schema are all folder-level operations, and doing them by hand through a browser is the actual cost the license removes.
Questions people ask before buying
Is this a subscription?
No. One payment, lifetime license, free updates. The only subscription products we sell are DinnerLogic and the Tekla Drawing Checklist, and both are labelled as such.
Do my files get uploaded in either version?
No. The web tools run the codecs in your browser and the desktop app never opens a network connection for conversion. The difference is only where the ceiling sits, not where the work happens.
Can I use one key on more than one machine?
The license covers your own machines. Activation ties a key to a hardware fingerprint, so if you replace a computer, contact us and we will release the seat.
Which formats does the offline build cover?
All twenty-four tools ship in the desktop app: JSON, YAML, TOML, CSV, XML and INI converters; Base64 and archive utilities; XLSX and CSV spreadsheets; PDF split and merge; PNG, JPEG, WebP and HEIC images; and WAV and MP4 media compression.
Questions this page did not answer? Use the contact form — it reaches the person who wrote the software. Licensing terms are in the End-User License Agreement.