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Herramientas PDF, de imagen, para desarrolladores, SEO, de texto, para estudiantes y empresas — todas gratis, todas enteramente en tu navegador. Sin subidas, sin cuenta, ningún servidor ve tus datos.
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
What does this actually show me?
A realistic mockup of how your page's title and meta description would look as a Google search result — including where each gets visually truncated if too long.
Does this match Google exactly?
It closely approximates Google's typical desktop and mobile snippet rendering, but Google occasionally rewrites a title or description automatically based on the page and query — this preview shows what you're providing, which is the strongest signal but not always the final guaranteed result.
Does it check title/description length?
Yes — both fields show a live character count and visually truncate in the preview exactly where Google typically cuts a snippet off.
Can I preview mobile vs desktop?
Yes — toggle between the two, since Google displays slightly different snippet lengths on each.
Does using this submit anything to Google?
No — this is a visual mockup only; nothing is submitted to Google or any search engine.
Can I preview a URL I don't own?
Yes — this only renders the title/description/URL text you type in; it doesn't fetch or verify anything about a real page.
Is my data sent anywhere?
No — the preview is rendered entirely in your browser; nothing you type is transmitted.
Does a good-looking preview guarantee better rankings?
No — this helps you write a compelling, correctly-sized snippet, but title/description text is only one small factor among many in actual search rankings.
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.
SERP Preview Tool, in depth
SERP Preview Tool shows how a title and description may appear in a Google-like result snippet before you publish.
How SERP Preview Tool works here
SERP Preview Tool runs locally in your browser on TechDriven Tools. Inputs stay on your device — nothing is uploaded for this step.
Read every label before running. For SERP Preview Tool, the controls that change outcomes most are: title and meta description with pixel/character guidance. Change one control at a time when you are comparing results.
When to use it
Use SERP Preview Tool when the job matches what the tool is named for — not as a generic substitute for unrelated PDF or data tasks.
Prefer this browser version when the input is sensitive and you want processing to stay on-device with clear option names like: title and meta description with pixel/character guidance.
If the next step differs (for example you finished and now need a sibling utility), jump to a related tool instead of forcing one screen to do everything.
Teams standardize on SERP Preview Tool when the alternative is emailing files to a consumer upload site. Document the preferred option defaults (for example the usual quality, corner, or rate) so everyone reproduces the same result.
If SERP Preview Tool is only one step in a pipeline, write the order down: what happens before, what happens after, and which related tool owns each step. That prevents double-processing and accidental quality loss.
On mobile, prefer moderate file sizes and simpler option combinations. Local processing is powerful, but phones have less memory than desktops for huge scans or megapixel images.
Write titles that fit. See truncation risk before publishing.
Align intent. Match description promises to on-page content.
Social + search pairing. Keep meta consistent with Meta Tag Generator output.
Options that change the result
Primary controls
The important controls are: title and meta description with pixel/character guidance. Change one at a time when comparing outcomes so you know what improved the result.
Run and verify
After you run SERP Preview Tool, open or inspect the output on the device where you will share it. Keep originals until that check passes.
Boundaries
This page does not replace desktop suites for heavy Office conversion or certified legal e-sign. It covers the focused job described above.
Practical defaults
Start with conservative defaults on SERP Preview Tool, run once, then adjust. Extreme settings (lowest quality, highest tip, densest QR payload) are for known constraints — not first tries.
Inputs that surprise people
People often misread units or page indexes. Align with the on-screen labels and the total page count or unit selectors before blaming the engine.
Outputs and naming
Rename downloads immediately (date + client + purpose). SERP Preview Tool may use a generic filename; clear names prevent sending yesterday’s draft.
Accessibility and sharing
After visual tools (watermark/sign/page numbers), skim a page with fresh eyes for contrast and coverage. After data tools, copy results into the system of record your team actually uses.
Privacy
SERP Preview Tool is designed to run in your browser so your files and text are not uploaded for the core transformation.
Still handle downloads carefully: a private process can still leave sensitive files in your Downloads folder.
Optional accounts on TechDriven Tools, when used, are about lightweight usage metadata — not storing the contents of your SERP Preview Tool inputs.
If policy requires a vendor DPIA for any online tool, note that local browser processing reduces data transfer risk, but downloaded artifacts still need handling under your retention rules.
SERP Preview Tool is built to process locally in your browser so sensitive PDFs, images, or text do not need to be uploaded to an unknown server just to finish this job.
Common mistakes
- Pixel widths vary by device — Preview is guidance, not a Google guarantee.
- Clickbait titles that mismatch content — Hurt trust even if they fit.
- Forgetting unique titles — Duplicates waste the preview work.
Getting reliable results from SERP Preview Tool
Most failures with SERP Preview Tool are input/setting issues rather than mysterious bugs: wrong units, wrong page lists, wrong language, or expecting one tool to do a sibling’s job. Re-read the option names, fix the input, and re-run — local tools make iteration cheap.
SERP Preview Tool accelerates the workflow; it does not replace your judgment or professional advice where required.
Related tools
These related tools commonly sit before or after SERP Preview Tool in real workflows.
- Meta Tag Generator — Build title, description, Open Graph and Twitter Card tags for a page.
- Word Counter — Count words, characters, sentences and paragraphs as you type.
- Character Counter — Count characters, characters without spaces, words, and lines as you type.
Use SERP Preview Tool when you need this specific job done privately and quickly. Respect what it is not (see mistakes), verify outputs, and chain related tools only when the next step truly differs.
Start from SERP Preview Tool.
If you arrived from search looking for SERP Preview Tool, bookmark the tool page itself after this guide — the article exists to teach options and pitfalls, not to replace the working UI.
When something looks wrong in SERP Preview Tool, reproduce with a tiny sample input first. Smaller fixtures debug faster than a 200-page scan or a 2MB JSON blob.
Share feedback with teammates as option recipes (“Quality 72%, bottom-center numbers, Start at 1”) rather than screenshots alone — recipes transfer cleanly.
From our blog: How to Preview Your Google SERP Title and Description