Which File Tool Should I Use?

Quick answer

Start with the job: split, merge or compress PDFs; resize, compress or convert images; turn images into a PDF; or convert simple tabular data between CSV and JSON. Browser-side tools are convenient, but large or highly sensitive files still need care.

Primary hub

File tools

Open the Files hub when you want to choose by PDF, image or data task.

File tools are designed for browser-side processing and local downloads.

Open file tools

Start here recommendations

Before using the tool, gather the inputs or assumptions that are most likely to move the result.

PDF pages or documents Use PDF Split to extract pages, PDF Merge to combine documents and PDF Compress to try a smaller PDF file.
Image dimensions Use Image Resizer when the width, height or aspect ratio needs to change.
Image file size Use Image Compressor when the main goal is a smaller JPG, PNG or WebP download.
Image format Use Image Converter or the PNG/JPG/WebP shortcut pages when the file type needs to change.
Pictures into a PDF Use Image to PDF when one or more images should become a single PDF download.
CSV or JSON data Use CSV to JSON or JSON to CSV when the data is tabular and you need a local converted download.

Use this tool if...

Choose the specific tool by the output you need, not only by the input file you have.

PDF Split Use this for selected pages, page ranges or splitting one PDF into page groups.
PDF Merge Use this to combine whole PDF files in a chosen order.
PDF Compress Use this to try a smaller PDF. It may not reduce already optimized or image-heavy files.
Image Resizer Use this when pixel dimensions matter more than the original file size.
Image Compressor Use this when you want to reduce file size through quality, format or optional dimension limits.
Image Converter Use this for JPG, PNG and WebP format changes when transparency, quality or browser support matters.
PNG/JPG/WebP shortcuts Use a shortcut page when you already know the exact input and output format.
CSV/JSON converters Use these for simple tabular data. Use a spreadsheet or developer workflow for complex schemas.

Example paths

The quickest path is usually the one that matches the one change you need.

Need selected pages: PDF Split; Enter page ranges such as 1-3 or 2,4 when the output should contain only part of a PDF.
Need one combined file: PDF Merge; Add PDFs in the order you want and download one merged PDF.
Need smaller dimensions: Image Resizer; Change width or height while keeping the aspect ratio when the visual size needs to fit a requirement.
Need smaller bytes: Image Compressor; Lower quality or cap dimensions, then compare the generated file size before using the download.
Need a different format: Image Converter; Choose the output format carefully because JPG, PNG and WebP handle transparency and quality differently.
Need tabular conversion: CSV to JSON or JSON to CSV; Use these when rows, headers and cells are the main structure.

When two jobs are needed, do them in order. For example, resize an image before compressing it if dimensions must change.

How to read file-tool output

Most file outputs are generated downloads, not advice or official documents.

PDF tools

Document tasks

Best for page extraction, whole-file merging and a browser-side compression attempt.

Image tools

Visual file tasks

Best when dimensions, file size, format or image-to-PDF output is the main question.

Data tools

Tabular data

Best for simple CSV and JSON conversions where values should stay readable and downloadable.

Large files

Browser limit

Large PDFs, images and data files can be slow or fail because input and output are held in browser memory.

Local downloads

User action

File tools generate a browser download from the current input and settings after you choose the action.

Sensitive files

Use caution

Browser-side processing avoids a required upload, but highly sensitive files still deserve extra care on any website.

Common mistakes

These are common ways to choose the wrong file tool or expect more than a browser utility is meant to do.

Using compress when the dimensions are wrong Use Image Resizer when a site asks for width and height. Compression changes file size, not necessarily dimensions.
Expecting guaranteed PDF compression PDF Compress is an attempt. Some PDFs are already optimized or cannot shrink much in a browser-side rewrite.
Expecting image-to-PDF to create searchable text Image to PDF creates image-based pages. It does not perform OCR.
Forgetting format tradeoffs JPG does not keep transparency, PNG can stay large and WebP support depends on the browser and destination.
Using a file converter for complex data cleanup Use a spreadsheet, database tool or developer workflow when CSV or JSON needs schema mapping, formulas or review.

Related file tools

These are the PDF, image and data tools referenced by this chooser.

Related guides

Use these notes for browser-side behaviour and adjacent developer utilities.

Browser-Based Privacy and Export Behaviour Understand how NoNoiseTools handles browser-side calculations, pasted text, file processing, copy actions, downloads and privacy expectations. Read guide Which Developer Tool Should I Use? Choose between JSON formatting, URL encoding, Base64, Unix timestamps, UUIDs, QR codes, passwords, color conversion, regex testing and Markdown tables. Read guide

What to try next

Use the next step that matches the question you want to answer.

Browse file tools Browser-based file tools for converting CSV and JSON data, resizing images, compressing images, converting image formats, using PNG/JPG/WebP shortcuts, turning images into PDFs, compressing PDFs, merging PDFs and splitting PDFs with local downloads and no required server upload. Open file tools Read privacy and export notes Understand browser-side processing, file downloads, copy actions and privacy expectations. Read guide Read methodology How NoNoiseTools handles formulas, rounding, timing, region settings, exports and general estimate limits. Open methodology

FAQs

Which PDF tool should I use?

Use PDF Split for selected pages, PDF Merge for combining whole PDFs and PDF Compress when you want to try reducing file size. PDF Compress does not guarantee a smaller output.

Should I resize, compress or convert an image?

Resize changes dimensions, compress targets file size and convert changes the format. Choose the tool based on the thing you need to change first.

Are files uploaded to NoNoiseTools?

These file tools are designed to process files in your browser, so NoNoiseTools does not need to send the file to a server for the tool.

What happens with large files?

Large files may be slow or fail because the browser has to hold the input, decoded data and generated output in memory.

Can the PDF tools unlock protected PDFs?

No. They do not unlock, bypass or repair password-protected, encrypted or corrupt PDF files.

When is a specialist editor or spreadsheet better?

Use a specialist PDF editor for OCR, signatures, form editing or redaction; use a spreadsheet or database workflow for complex CSV and JSON cleanup.

Methodology and limits

File tools provide browser-side utilities for common PDF, image and data tasks. They do not provide OCR, redaction, document repair, password bypass, legal review, security review or guaranteed file-size reduction.

Read the methodology notes or the general disclaimer for broader NoNoiseTools assumptions.