Every file you touch here stays on your machine.
PDF, image, developer, SEO, text, student and business tools — all free, all entirely in your browser. No upload, no account, no server ever sees your data.
The toolset
Focused tools covering the everyday PDF work — pick one to get started, no account needed.
How this actually works
Each tool runs entirely with JavaScript already loaded in this page — PDF tools via pdf-lib and pdf.js, image tools via the browser's native Canvas API, and everything else with plain JavaScript. Your files or input are read into browser memory, processed, and handed back as a download or copyable result. This page itself is served by a small Laravel route; Laravel never sees your files either. The only backend in use is Supabase, and only for two optional things: signing in with a magic link, and — only if you're signed in — a log of which tool you ran and when. Two things have real limits worth knowing up front: Compress PDF flattens each page to a re-encoded image (great for scan-heavy PDFs, not ideal if you need selectable text after), and Word/Excel/PowerPoint ⇄ PDF conversion genuinely requires a server-side rendering engine, so it isn't included here — this build only ships tools that can honestly run client-side.
Questions people actually ask
What is AVIF and why use it?
AVIF is a modern image format that typically achieves smaller file sizes than JPEG or WebP at equivalent visual quality — useful for faster-loading websites.
Does every browser support AVIF encoding?
Most current Chrome and Edge versions do. Some browsers (certain Firefox and Safari versions) support viewing AVIF images but not encoding them from a canvas — this tool detects that and shows a clear message rather than failing silently.
What happens if my browser doesn't support AVIF encoding?
You'll see a plain message explaining that your browser can't encode AVIF, rather than a silent failure or a broken download.
How does AVIF compare to WebP?
AVIF often achieves better compression than WebP at the same visual quality, though WebP has broader, more mature browser support. See also this site's <a href="/webp-converter">WebP Converter</a> for the more widely-compatible option.
Is there a quality slider?
Yes — choose your own balance between file size and visual sharpness.
Does it preserve transparency?
AVIF supports transparency, so a transparent PNG source keeps its transparency in the converted file.
Is my image sent anywhere?
No — conversion happens entirely in your browser using the Canvas API; nothing is uploaded.
Can I convert an AVIF file back to JPG or PNG?
Not with this specific tool, which converts into AVIF. Most modern browsers can already open an AVIF file directly, and re-saving from an image viewer or editor covers that direction.
Is this really free, and is there a file size limit?
Yes — no account, no paywall. Since processing happens in your browser's memory rather than uploading anywhere, the practical limit is your device's available RAM, not a server quota. Very large files (500+ pages) may run slower, especially for Compress and PDF→JPG.
Does anything about my file get sent anywhere?
No. Every tool runs with pdf-lib/pdf.js loaded in this page; your file is read into browser memory and never leaves it. The only network call this app makes for your account is Supabase auth — and that only stores which tool you ran and when, never file content.
Why isn't Word/Excel/PowerPoint → PDF included?
Converting Office formats accurately needs a real rendering engine (what Word or LibreOffice use internally) — no browser library does this reliably. Rather than ship a broken version, it's left out.
Does TechDriven Tools have OCR (text recognition)?
Yes — OCR PDF recognizes text in scanned or photographed pages using Tesseract.js, running entirely on your device, and gives you a searchable PDF or a plain text file. Nothing is uploaded for this either.
Can I use this without an internet connection?
Once the page and its libraries have loaded once, yes — the tools themselves need no network access. Signing in and viewing history do require a connection, since those talk to Supabase.
What happens to the "history" if I sign in?
Only a row per tool run — the tool's name and a timestamp. No filename, no file content, ever. You can see the full list any time via the History button.
Are the non-PDF utilities (password generator, JSON formatter, etc.) private too?
Yes — same rule as the PDF tools. Word Counter, Case Converter, Password Generator, UUID Generator, Base64, Hash Generator, JSON Formatter and JWT Decoder all run with plain JavaScript already loaded in this page; nothing you type or paste is sent anywhere.
AVIF Converter, in depth
Convert a JPG or PNG to AVIF — a newer image format that's typically smaller than JPEG or WebP at the same visual quality.
Features
Adjustable Quality
A single slider trades file size against visual sharpness.
Smaller Than WebP
AVIF often produces smaller files than WebP at comparable quality.
Browser-Native Encoding
Uses your browser's own AVIF encoder — no library download.
Instant
The image never leaves your device.
Why use AVIF Converter
- Shrink images for a faster-loading website, where every extra kilobyte affects load time.
- Reduce storage or bandwidth costs for a large image library.
- Try a newer, widely-supported image format before committing to it site-wide.
- Compare AVIF output against the WebP Converter for the same source image.
How it works
Your image is drawn onto an in-memory canvas, then re-encoded as AVIF using your browser's own built-in image encoder — the same one Chrome and Firefox use internally. Nothing is uploaded; the whole conversion happens locally.
Browser support varies
AVIF encoding support in canvas-based export is newer than JPEG or PNG and not universal — a browser that can't encode it gets a clear message here rather than a silently wrong file. If that happens, a recent version of Chrome or Firefox, or the WebP Converter as a more widely-supported alternative, will work.