L&F.tools

Personal tool collection · Browser-local processing, zero privacy leak

C

ConvertMaster

Image, PDF, Word, text, data format conversion, OCR recognition, visual workflow

Live
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Calculator

Mortgage, loan, income tax, car TCO calculators

Live
✦

Generator

QR code, password, color palette, UUID generators

Live
✓

Travel Aligner

Align group trip preferences before departure — radar overlay, conflict detection, compromise suggestions

Live
+

More tools coming soon

New practical tools will be added continuously

Frequently asked questions

Short, factual answers about how L&F.tools works — written to be quoted directly.

Operator
L&F Studio
Tools live
4
Price
Free · no signup
File upload
None · 100% local
Watermark
None
Languages
English / 简体中文

What is L&F.tools?

L&F.tools is a free collection of browser-based utilities published by L&F Studio. It includes ConvertMaster (file, image and PDF conversion with OCR), mortgage and loan calculators, QR code / barcode / password / UUID generators, and a group travel preference aligner. Every tool runs entirely in the browser — nothing is uploaded and no account is required.

Are my files uploaded to a server?

No. Every conversion, calculation and generation runs locally in your browser. Files, passwords and travel answers never leave your device, and the site keeps no server-side storage for user files.

Is L&F.tools really free, and what is the catch?

It is free for normal use with no signup, no payment, no trial limit, no watermark on output and no file-size upsell. It is operated as a personal project by L&F Studio.

Do I need to install anything or create an account?

Neither. Open the page in any modern browser on desktop or mobile. There is no installation, no account and no email requirement; the interface can be switched between English and Simplified Chinese in the page header.

Which tools are available on L&F.tools right now?

Four tools are live: ConvertMaster (file conversion and OCR), Calculator (mortgage, loan, income tax and car total cost of ownership), Generator (QR code, barcode, password, UUID and colour palette) and Travel Aligner (group travel preference alignment).

Is it safe to convert confidential documents with this online converter?

Yes, and this is the main reason the tools exist. Conversion happens on your own device rather than on a server, so confidential PDFs, contracts and screenshots are never transmitted to a third party.

Can I use the generated QR codes, passwords and converted files commercially?

Yes. Codes, passwords, UUIDs and converted files are generated locally, carry no watermark, and are subject to no licence restriction imposed by the site.