Free Heatmap Generator for CSV & Excel | Charttoolbox
charttoolbox.comMake bar, line, pie, and scatter charts from CSV or Excel in the browser. Export SVG or PNG. Free, no account, and your data stays on your device.
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Security & privacyHow to Redact a PDF in Seconds — Free Online Redactor
Free browser-local PDF redaction. Redact text, images, signatures, and pages without uploading the file. No signup, no watermark. Preview the output and strip basic metadata.