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Popular tools
The highest-demand tools with full options — browse by category below for the rest.
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. Honest limits worth knowing: Compress PDF flattens each page to a re-encoded image (great for scans, not ideal if you need selectable text after); HEIC conversion depends on your browser (Safari usually works; Chrome often cannot decode HEIC without a library we don't ship); Fill PDF Form is best-effort for simple AcroForm fields, not a full Adobe Forms replacement; and Word/Excel/PowerPoint ⇄ PDF genuinely needs a server-side engine, so it isn't included — this build only ships tools that can honestly run client-side.
Questions people actually ask
Is Memorable Password Generator free to use?
Yes — it runs in your browser with no account required.
Is my data uploaded to a server?
No for processing. The tool runs locally in your browser tab whenever the format allows.
Can I use Memorable Password Generator on my phone?
Yes, in a modern mobile browser. Large files may take longer because your device does the work.
What are the limits?
There is no server quota from us. The practical limit is your device memory and the formats browsers can decode.
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.
Memorable Password Generator, in depth
Free online Memorable Password Generator — runs entirely in your browser. No upload to a server, no account required.
Features
Instant results
Get an answer or file without waiting on an upload queue.
On-device processing
Work stays in your browser tab using local APIs and libraries.
No account wall
Use the tool immediately — optional history never stores file contents.
Mobile friendly
Works in a modern phone browser the same way it works on desktop.
Why use Memorable Password Generator
- Keep sensitive input private — contracts, grades, payroll numbers, and tokens should not be the default upload.
- Finish small jobs quickly without installing desktop software for a one-off task.
- Cross-check another app's result with a second, transparent calculation or conversion.
- Share a predictable workflow with teammates who only need a browser.
How it works
Memorable Password Generator is implemented as a client-side utility on TechDriven Tools. Depending on the job, that means plain JavaScript math, the Canvas API for images, Web Crypto for hashes and secrets, or pdf-lib / pdf.js for PDF page work. The important part for privacy is the same in every case: your input is read into memory in this tab, transformed locally, and returned as a download or on-page result.
Because there is no server-side processing pipeline, there is also no hidden file-size quota from us. Very large PDFs or images can still feel slow on a phone — that is your device doing the work, not a stalled upload. If a format is only partially supported in browsers (for example some camera HEIC variants), the tool will say so clearly rather than pretending a full desktop converter exists in WebAssembly.
Tips
- Verify the output with a known sample before you delete the original.
- Change one setting at a time when you are comparing results.
- Prefer this privacy-first tool for confidential content; use a desktop app only when you need a format this site deliberately does not claim to handle (such as Word ↔ PDF).
From our blog: How to Use Memorable Password Generator Online (Free & Private)