Free browser tools that never upload your files. Combine images into a PDF or an MP4, compress an image to an exact size, crop a video, or strip EXIF data. https://abox.tools/ 2026-09-13T00:00:00Z A Box of Tools https://abox.tools/ https://abox.tools/gif-to-mp4/ 2026-09-13T00:00:00Z

Turn an animated GIF into an MP4 in your browser, at a fraction of the size. Every frame keeps the GIF's own timing; nothing is resampled. H.264 in an MP4, the file every platform takes. Nothing is uploaded.

https://abox.tools/guides/convert-a-gif-to-mp4/ 2026-09-13T00:00:00Z

Why an MP4 of the same animation is a tenth of the size of the GIF, what a video cannot do that a GIF can, why the frame timing is what most converters get wrong, and how to convert a GIF in your browser without uploading it.

https://abox.tools/guides/rotate-a-video/ 2026-09-13T00:00:00Z

Why a phone clip plays sideways, what the nine numbers in its header do, why most rotators re-encode for nothing, when to bake the turn in instead, and how to turn a video in your browser without uploading it.

https://abox.tools/rotate-video/ 2026-09-13T00:00:00Z

Turn a sideways or upside-down video a quarter or half turn in your browser. The turn is written into the file's header, so no frame is re-encoded and nothing is lost; or bake it into the picture for old players. MP4, MOV, WebM and MKV in, MP4 out. Nothing is uploaded.

https://abox.tools/guides/compress-a-video/ 2026-09-12T00:00:00Z

What a size limit actually costs a video, where the megabytes go, why the frame size drops before the picture goes to mud, how to lose as little as the number allows, and how to do it in your browser without the upload.

https://abox.tools/guides/convert-a-video-to-mp4/ 2026-09-12T00:00:00Z

What an MP4 that uploads actually is, why a WebM, an MKV or an iPhone MOV gets refused, which conversions lose nothing and which cost a generation, and how to do it in your browser without uploading the file.

https://abox.tools/guides/protect-a-pdf/ 2026-09-12T00:00:00Z

A password on a PDF is a real lock. A restriction on printing is a request. What each one does, which encryption to choose, why the upload is the strange part of every online tool, and what happens if you forget the password.

https://abox.tools/guides/watermark-a-pdf/ 2026-09-12T00:00:00Z

Why lenders and landlords ask for a scan to be stamped with their name, what the stamp does and does not prevent, how to do it in your browser without uploading the document, and what to write on it.

https://abox.tools/convert-to-mp4/ 2026-09-12T00:00:00Z

Turn a WebM, MKV, MOV or any MP4 into an MP4 with H.264 and AAC, the file every phone, browser and upload form takes. H.264 and AAC are copied across untouched; anything else is re-encoded on your machine. Nothing is uploaded.

https://abox.tools/unlock-pdf/ 2026-09-12T00:00:00Z

Take the password and the printing, copying and editing restrictions off a PDF in your browser. Most protected files need no password at all, and this one tells you which kind you have. Nothing is uploaded, and it never guesses a password.

https://abox.tools/watermark-pdf/ 2026-09-12T00:00:00Z

Put a watermark on every page of a PDF in your browser: who it is for, a date, a name, at any angle and opacity, in any language. Nothing is uploaded, the pages themselves are not touched, and the result is checked before you download it.

https://abox.tools/compress-video/ 2026-09-12T00:00:00Z

Shrink a video to under 8, 16, 25 or any number of megabytes, in your browser. Say the size; the tool picks the frame size and bitrate, encodes it, and measures the result. Nothing is uploaded, and the sound is copied through untouched.

https://abox.tools/protect-pdf/ 2026-09-11T00:00:00Z

Put a password on a PDF, or restrict printing and copying, in your browser. AES-256 by default, nothing is uploaded, and the finished file is opened again here to prove the password holds before you are offered it.

https://abox.tools/document-scanner/ 2026-09-10T00:00:00Z

Turn a phone photo of a page into a straightened, evenly lit PDF. The corners are found for you, the perspective is undone, the shadow is divided out. Runs entirely in your browser: nothing is uploaded.

https://abox.tools/exif-editor/ 2026-09-10T00:00:00Z

See the EXIF and GPS data hidden in a photo, edit it, or strip the lot in one click. In your browser: nothing uploaded, and the photo is never re-encoded.

https://abox.tools/guides/unlock-a-pdf/ 2026-09-10T00:00:00Z

A PDF that will not print and a PDF that will not open are two different problems with one name. What each of them actually is, why one comes off in a click and the other cannot come off at all, and how to tell which you have.

https://abox.tools/compress-image/ 2026-09-10T00:00:00Z

Compress a JPEG, PNG or WebP to an exact size - 100 KB, 2 MB, anything. Runs entirely in your browser: nothing uploaded, no account, works offline.

https://abox.tools/redact-image/ 2026-09-10T00:00:00Z

Cover a name, an address or an account number in a photo or screenshot and re-encode the picture, so the hidden pixels are gone from the file rather than sitting under a rectangle. Runs entirely in your browser.

https://abox.tools/resize-image/ 2026-09-10T00:00:00Z

Resize, crop and convert JPEG, PNG and WebP images in your browser. Exact pixels, a percentage, or a long edge - one image or a whole folder. Nothing is uploaded.

https://abox.tools/merge-pdf/ 2026-09-10T00:00:00Z

Combine PDFs, split one into several, and drag pages into the order you want — all inside your own browser. Nothing is uploaded, there is no account, and the finished file is opened again and counted before it is offered to you.

https://abox.tools/redact-pdf/ 2026-09-10T00:00:00Z

Take words out of a PDF instead of drawing a black rectangle over them. The letters are deleted from the page's own drawing instructions, the finished file is opened again and searched to prove they have gone, and nothing is uploaded.

https://abox.tools/pdf-to-csv/ 2026-09-10T00:00:00Z

Turn the tables in a PDF into a CSV: bank and card statements, invoices, price lists, reports. Every table on every page is found from where its text sits, and a running balance is checked row by row where there is one. Nothing is uploaded.

https://abox.tools/svg-to-image/ 2026-09-10T00:00:00Z

Convert an SVG to a PNG, JPEG or WebP at any size, in your browser. Say the width, a multiple, or a box; get @2x and @3x copies as well. Transparency kept, nothing uploaded.

https://abox.tools/image-to-svg/ 2026-09-09T00:00:00Z

Trace a black and white image into a real SVG outline, in your browser. Logos, stencils, signatures, line art and silhouettes become curves you can scale to any size. Click to drop anything the trace got wrong. Nothing is uploaded.

https://abox.tools/guides/is-it-safe-to-upload-a-bank-statement/ 2026-09-09T00:00:00Z

A statement is every payee, every amount and your balance in one file. Here is what a converter receives, what the careful ones do with it, and how to tell whether the upload needed to happen at all.

https://abox.tools/edit-audio/ 2026-09-07T00:00:00Z

Play a track backwards, speed it up or slow it down, and make a quiet recording louder. Takes the sound out of a video too. Runs in your browser: nothing uploaded.

https://abox.tools/trim-audio/ 2026-09-07T00:00:00Z

Play a recording and mark every part worth keeping as it goes past, then save those parts as one file. Sample-exact cuts, no clicks at the joins, nothing uploaded.

https://abox.tools/base64/ 2026-09-07T00:00:00Z

Encode and decode Base64 in both alphabets, percent-encode URLs, escape HTML entities, and read hex and backslash escapes. It all runs in your browser - nothing is uploaded, so a token never leaves your machine.

https://abox.tools/business-profile-preview/ 2026-09-07T00:00:00Z

See how your Google Business Profile will look before it goes live: the knowledge panel, the phone card and the search result, drawn from the name, category, hours, rating and photo you type. Import an existing listing by pasting it. Download as PNG or SVG. It all happens in your browser.

https://abox.tools/dicom-viewer/ 2026-09-07T00:00:00Z

Open CT, MR, X-ray and ultrasound scans in your browser. Window and level, scroll a whole series, measure in millimetres, read every DICOM tag, and see exactly what in the file identifies the patient. Nothing is uploaded.