How to batch rename files without uploading them
Learn how to batch rename files privately in your browser without uploading them. Covers prefixes, suffixes, replace, numbering, custom order, conflict checks and safe preview.
Read the guide FileNest practical guides
File work does not have to start with an upload
No generic productivity filler. Each guide answers one real question: how to process a batch, how to check the output, what can stay local in the browser, and when a specialist tool is the better choice.
Local-processing privacy boundaries Built around executable workflows
Start with the problem
Three guides for common file-work decisions
How to convert and compress images without uploading them
Convert JPG, PNG and WebP, resize batches and compress images locally without uploading originals. Understand format, dimensions, quality and privacy tradeoffs.
Read the guideHow to extract text from images without uploading them
Learn how to run private image-to-text OCR in your browser without uploading contracts, receipts or screenshots. Covers accuracy, review, languages and export choices.
Read the guideWhy these guides exist
Understand the data flow before choosing a tool
An online tool is not one single technical model. Some pages upload files for server processing; other jobs can stay entirely in the browser. These guides explain the difference and the limits of local processing instead of treating privacy as an unverifiable slogan.