Browser Tools & Privacy

Practical guides to PDFs, transcripts, data masking, file comparison, QR codes and shift handoffs using Lunibyte tools.

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• LuniSpark — Turn SRT, VTT or TXT transcripts into timestamped quotes and editable Facebook, LinkedIn and X drafts. Review each draft before export; processing stays in your browser.

Articles & step-by-step guides

• CSV Shield: A Practical, Privacy-Conscious Guide to Share structured data with fewer directly identifying details

  Learn to use CSV Shield with practical checks, privacy considerations, and honest limitations.

• How to Use CSV Shield: Step-by-Step Instructions and Checks

  Step-by-step help for CSV Shield with practical checks, privacy considerations, and honest limitations.

• Why Use CSV Shield? Practical Benefits, Privacy, and Trade-Offs

  Explore reasons to use CSV Shield with practical checks, privacy considerations, and honest limitations.

• LuniDiff: A Practical, Privacy-Conscious Guide to Find meaningful changes between two versions of text

  Learn to use LuniDiff with practical checks, privacy considerations, and honest limitations.

• How to Use LuniDiff: Step-by-Step Instructions and Checks

  Step-by-step help for LuniDiff with practical checks, privacy considerations, and honest limitations.

• Why Use LuniDiff? Practical Benefits, Privacy, and Trade-Offs

  Explore reasons to use LuniDiff with practical checks, privacy considerations, and honest limitations.

• Meet LuniPDF: 12 Private PDF Tools, Zero Uploads — Our Biggest Update Yet

  The tool formerly known as NoUpload is now LuniPDF — 12 PDF and photo tools that run entirely in your browser. Merge, split, compress, sign, convert and more, while your files never leave your device.

• LuniPDF Guide: Merge, Sign, Compress and Convert Step by Step — Right in Your Browser

  Step-by-step with LuniPDF: merge PDFs in order, fill and sign on your phone, compress a scan for email, convert HEIC photos in bulk and strip GPS location before you share — all without uploading a single file.

• Why LuniPDF? Because Your PDF Should Never Have to Leave Your Computer

  Most PDF websites make you upload contracts, tax forms and medical records to a stranger's server. LuniPDF processes everything inside your browser instead. Here is why that difference matters.

• LuniRedact: A Practical, Privacy-Conscious Guide to Share screenshots without exposing personal details

  Learn to use LuniRedact with practical checks, privacy considerations, and honest limitations.

• How to Use LuniRedact: Step-by-Step Instructions and Checks

  Step-by-step help for LuniRedact with practical checks, privacy considerations, and honest limitations.

• Why Use LuniRedact? Practical Benefits, Privacy, and Trade-Offs

  Explore reasons to use LuniRedact with practical checks, privacy considerations, and honest limitations.

• LuniSpark: Transcript-Based Drafts with Source Checks and a Human Review Gate

  How the current LuniSpark turns local transcripts into source-linked drafts, labels rule-based output and requires review before copying or exporting.

• LuniSpark Guide: Parse, Select, Review and Export the Current Build

  Follow the current LuniSpark workflow: two consent checks, source preview, labelled non-AI suggestions, draft edits and per-draft review before export.

• Why LuniSpark Uses Local Processing, Honest Labels and Explicit Review

  The reasons behind source-linked quotes, memory-only processing, labelled non-AI suggestions and a human review gate in LuniSpark.

• QR Batch Studio: A Practical, Privacy-Conscious Guide to Produce batches of QR labels without uploading a contact or inventory list

  Learn to use QR Batch Studio with practical checks, privacy considerations, and honest limitations.

• How to Use QR Batch Studio: Step-by-Step Instructions and Checks

  Step-by-step help for QR Batch Studio with practical checks, privacy considerations, and honest limitations.

• Why Use QR Batch Studio? Practical Benefits, Privacy, and Trade-Offs

  Explore reasons to use QR Batch Studio with practical checks, privacy considerations, and honest limitations.

• Shift Handoff: A Practical, Privacy-Conscious Guide to Make shift changes clearer with accountable tasks and handover notes

  Learn to use Shift Handoff with practical checks, privacy considerations, and honest limitations.

• How to Use Shift Handoff: Step-by-Step Instructions and Checks

  Step-by-step help for Shift Handoff with practical checks, privacy considerations, and honest limitations.

• Why Use Shift Handoff? Practical Benefits, Privacy, and Trade-Offs

  Explore reasons to use Shift Handoff with practical checks, privacy considerations, and honest limitations.