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A free Chrome extension that converts PDFs to editable Excel spreadsheets in one click. Text PDFs are parsed locally, while scanned or image PDFs use cloud-based AI table extraction.
Watch out · Text PDFs stay local, but scanned or image-based PDFs are sent over HTTPS for cloud AI extraction rather than processed on-device.
FreeNo sign-upNo subscription
What to know▼
How it works
A Chrome extension that converts a PDF into an editable Excel spreadsheet in one click; text-based PDFs are parsed instantly and locally, while scanned or image PDFs go through AI-powered table extraction over HTTPS.
Pricing
Free, no login or subscription, no size limits.
Best for
Anyone who needs a quick, no-signup way to turn PDF tables into editable spreadsheets.
Watch out
Text PDFs stay local, but scanned or image-based PDFs are sent over HTTPS for cloud AI extraction rather than processed on-device.
We check every product on this page once a day and record whether it still answers.
A free calculator site (finance, health, math, construction) that shows the underlying formula and worked example, not just an answer.
FreeNo sign-up
What to know▼
How it works
Provides 60 free calculators for finance, health, math, construction, conversions and science, each showing its formula and a worked example alongside the result.
What's different
Shows the formula and worked example instead of just a black-box answer.
Pricing
Free, no sign-up.
Best for
People who want to understand how a calculation was reached, not just the result.
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Uploads your AWS Cost Explorer CSV and flags wasted spend like idle load balancers and unused IPs, entirely in-browser with no API keys needed.
FreeNo sign-up
What to know▼
How it works
Upload your AWS Cost Explorer CSV and it scans for wasted spend — zombie resources, over-provisioned EC2, idle load balancers, stale EBS snapshots, unused Elastic IPs, and S3 tier mismatches — entirely in the browser.
What's different
No API keys, no signup, and no data leaves your browser during the scan.
Pricing
Free scan now; a Pro tier with auto-scans and alerts is on the roadmap.
Best for
Indie hackers and small SaaS teams paying roughly $200–5000/month to AWS who want to find waste quickly.
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A free web tool that converts VCF contact exports from iPhone, Android, Gmail or Outlook into CSV or Excel — not a mobile app, works in the browser.
FreeNo sign-up
What to know▼
How it works
Converts vCard (.vcf) contact exports from iPhone, Android, Gmail or Outlook into a CSV or Excel spreadsheet, and works the other way too — all in the browser.
Pricing
Free.
Best for
Anyone needing to move contacts between phones, email clients or a spreadsheet without signing up for anything.
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A free, no-signup tool to open, edit and export CSV or Excel files right in your browser, processed locally. A quick alternative to opening a full spreadsheet app just to peek at a file.
FreeNo sign-upData stays with you
What to know▼
How it works
Open, view, edit and export CSV files (and Excel files) directly in the browser, with processing done locally.
What's different
No signup and no file upload — everything runs on-device.
Pricing
Free.
Best for
Anyone who wants to quickly view or edit a CSV or Excel file without opening a full spreadsheet app.
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A free browser-based chart maker that imports data from Excel or Google Sheets and exports images or animated charts, no sign-up needed.
FreeNo sign-upCan export my data
What to know▼
How it works
A web-based chart maker that imports data from Excel (XLSX) or Google Sheets, or manual entry, to build line, bar, pie, and radar charts with real-time preview, then exports as static images or animated charts.
Pricing
Free, no registration required.
Best for
Anyone who needs to build presentation- or report-ready charts without downloading software or signing up.
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A browser-based developer toolkit of 18 utilities (JSON, JWT, CSV, XML, Base64, Regex and more) that run entirely client-side, for developers who don't want to paste sensitive data into a tool that logs it.
FreeNo sign-upWorks offline
What to know▼
How it works
Runs 100% in the browser with zero data sent to any server; works offline, no signup, no account.
What's different
Built after a developer was fired for pasting an API response into a JSON formatter that logged everything.
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A free Google Sheets add-on that fixes chart axes and gridlines in one click, up to 25 scales a month with no signup — a formatting fix, not a spreadsheet replacement.
FreeNo sign-up
What to know▼
How it works
A Google Sheets add-on that fixes chart axes and gridlines across every chart in the sheet with one click.
Pricing
Free for 25 scales a month, no signup required; Pro adds unlimited scales and auto-update.
Best for
People building charts in Google Sheets who want a quick formatting fix rather than a full spreadsheet replacement.
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Extracts transactions from bank statements, including messy scans, into Excel or CSV without manual re-checking — the free tier covers only 5 pages, no signup needed.
No sign-up
What to know▼
How it works
Extracts transactions from bank and financial statements — including scanned PDFs, JPGs and PNGs — into Excel, CSV, QIF and accounting-ready exports, with automatic validation of the extracted results.
What's different
Built to handle messy, multi-page, multi-account and multi-currency scans that other converters stall on.
Pricing
5 pages free, no signup required.
Best for
Accountants and bookkeepers who need to digitize real-world, hard-to-parse bank statements without manually re-checking every row.
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392+ free calculators for finance, math, health and conversions — every result includes the formula and a plain-language explanation, no sign-up needed.
