Free online tools that run entirely in your browser

Fast, free, browser-only utilities. No sign-ups, no uploads — your files never leave your device.

No sign-ups. No uploads. Files never leave your device.

PDF tools

PDF Merge

Combine multiple PDF files into a single document, entirely in your browser. Files never leave your device.

Split PDF

Split a PDF into separate files by page ranges or every single page — quickly and in your browser. Your documents never leave your device.

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Compress PDF

Shrink PDF file size by re-encoding pages as quality-controlled images — right in your browser, so none of your files leave your device.

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Edit PDF

Draw, highlight and add text to any page of a PDF and save the result — a lightweight markup editor that keeps your files on your device.

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Sign PDF

Draw or type your signature, then drag it onto the page and download the signed PDF — all in your browser with no uploads.

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PDF Converter

Turn any PDF into a plain-text or HTML file — fast, free and entirely in your browser. None of your documents ever leave your device.

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Word to PDF

Convert Word documents (.docx) to PDF in your browser. Headings, tables, images and formatting are preserved — files never leave your device.

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PDF to Word

Convert PDF to an editable Word (.docx) document in your browser. Text, paragraphs and page breaks are carried over — files never leave your device.

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Protect PDF

Lock a PDF with a password and optional copy/print restrictions — encryption applied right in your browser, never on a server.

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Unlock PDF

Remove the password from a protected PDF you have the password for — decrypted locally on your device, with nothing uploaded.

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Redact PDF

Permanently black out names, numbers and any sensitive text before sharing a document — redaction happens locally in your browser.

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Rotate PDF Pages

Permanently rotate one page, several, or every page of a PDF by 90 or 180 degrees — all within your browser.

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Remove PDF Pages

Delete unwanted pages from a PDF with visual page thumbnails — pick the pages and download the cleaned file, privately in your browser.

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Extract PDF Pages

Pull any selection of pages out of a PDF into a brand-new file, or split pages into separate PDFs — done locally, no uploads.

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Rearrange PDF Pages

Reorder the pages of a PDF by dragging thumbnails into a new order, then download the reorganized document — all in your browser.

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Add Watermark to PDF

Stamp every page of a PDF with a text or image watermark at any angle and opacity, completely in your browser.

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Add Page Numbers

Number the pages of any PDF with your choice of position, start number and style — processed locally, private and free.

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Overlay PDF

Layer a second PDF on top of another — perfect for annotating templates, drafts and comparisons, entirely in your browser.

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Compare PDFs

Side-by-side page comparison plus word-level similarity scoring between two PDF versions — processed privately on your device.

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Optimize PDF for Web

Clean up metadata and compact the file structure of a PDF so it loads faster in browsers — done locally, with no uploads.

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Create PDF from Text

Write or paste text and instantly download it as a clean, print-ready PDF — composed entirely in your browser, with nothing uploaded.

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Image tools

Images to PDF

Combine JPG, PNG, WebP and other images into a single PDF with adjustable page size and orientation — securely in your browser.

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PDF to Images

Export every page of a PDF as high-quality JPG or PNG images — as separate files or one zip. All rendered locally on your device.

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Extract Images from PDF

Pull every embedded photo and graphic out of a PDF as original-quality JPG or PNG files — instantly, in your browser.

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Video tools

Video to Audio

Extract the audio track from any video — MP4, MOV, WebM, MKV and more — and download it as MP3, M4A or lossless WAV. Runs entirely in your browser.

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Text tools

Word Counter

Count words, characters, sentences and paragraphs and estimate reading time — live, in your browser, with zero uploads.

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PDF OCR

Turn scanned PDFs into real, selectable text using AI character recognition in your browser — copy, download and search the result.

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Text Diff

Compare two texts and see exactly what changed — additions, removals and edits highlighted line by line, entirely in your browser.

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Web tools

Webpage to PDF

Turn any web page into a clean PDF document. Paste a URL and download the page as a file — assembled in your browser.

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What is TinkerTools?

TinkerTools is a growing collection of fast, free utilities for everyday tasks — from counting words to merging PDFs. Every tool runs in your browser using open-source libraries like pdf-lib, so there is no server cost, no queue, and no reason to worry about where your files go: they never leave your device. More tools are added regularly, so check back often.

Frequently asked questions

Is TinkerTools free?

Yes — every tool is 100% free with no sign-ups, no limits and no queue. The site is supported by unobtrusive ads.

Are my files uploaded to a server?

No. Every tool runs entirely in your browser, so your files are processed right on your device and are never uploaded, stored or seen by anyone.

Which devices does TinkerTools work on?

All tools run in any modern browser on desktop, tablet and mobile. There is nothing to install and no app to download.

Can I convert Word to PDF and PDF to Word?

Yes — see PDF to Word and Word to PDF under the PDF tools. Both run entirely in your browser and keep your files private.