Guides
Short guides for JSON, passwords, images, writing, and developer workflows — each one links straight into a free ToolVera utility.
37 guides · Free · Private · Browser-based
Write Markdown, preview headings and lists instantly, then paste polished copy into GitHub or your CMS. From ToolVera.
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Markdown Preview
Write Markdown and preview headings, lists, tables, quotes, links, and code instantly in your browser.
Browse every how-to by topic and jump into the matching tool.
Generate scannable QR codes for URLs and text in the browser, download them, and share without mobile app clutter. From ToolVera.
Read guideUnderstand MD5 and SHA hashes for integrity checks and cache keys — and generate digests privately in the browser. From ToolVera.
Read guideLearn core regular expression patterns and verify them against sample text in a private browser tester. From ToolVera.
Read guideUse a free word counter and character counter to hit draft targets, trim fluff, and keep titles readable. Private browser tools from ToolVera.
Read guideShrink JPG and PNG file sizes in the browser for faster pages and easier email — without uploading to a mystery server. From ToolVera.
Read guideSwitch between metric and imperial units for length, weight, and temperature in your browser — free Unit Converter on ToolVera.
Read guideLearn percentage of, reverse percentage, and percent change with clear examples — then calculate instantly in your browser with ToolVera.
Read guideSpot wording changes between drafts instantly. ToolVera’s diff checker highlights additions and removals in your browser.
Read guideQuick tip splits and sales-tax totals for dinners, invoices, and checkout estimates — free calculators on ToolVera.
Read guideTurn CSV exports into JSON arrays in your browser. Keep customer data local with ToolVera’s free CSV to JSON converter.
Read guideCreate UUID v4 identifiers locally for fixtures, database seeds, and API tests with ToolVera’s free UUID generator.
Read guideTurn messy titles into URL-friendly slugs — lowercase, accent-safe, hyphenated — with ToolVera’s free slug generator. No upload, no signup.
Read guideLearn the difference between profit margin and markup, then calculate both instantly in your browser with ToolVera’s free margin calculator.
Read guideLearn how to base64 encode decode online privately in your browser. Encode or decode tokens and config safely with ToolVera’s free Base64 tool — no signup.
Read guideAlphabetize lists, logs, and option sets instantly. Free browser line sorter from ToolVera — sort ascending or descending.
Read guideGenerate random integers in a custom range for raffles, sampling, and QA. Free browser RNG from ToolVera.
Read guideMeasure return on investment from cost and gain in seconds. Free browser ROI calculator from ToolVera — shareable scenarios.
Read guideSet selling price from cost and target markup — and see how it differs from margin. Free ToolVera markup calculator.
Read guidePredict how long an article takes to read from word count and pace. Free browser reading time estimator from ToolVera.
Read guideAdd sales tax to a subtotal for invoices, estimates, and checkout math. Free browser sales tax calculator from ToolVera.
Read guidePick colors and copy hex values for CSS, design tokens, and brand palettes. Free browser color picker from ToolVera.
Read guideGenerate classic Lorem Ipsum paragraphs and sentences for wireframes and CMS demos. Free browser generator from ToolVera.
Read guidePractical habits for unique, high-entropy passwords — plus free tools to generate and check strength privately. From ToolVera.
Read guideCount days, weeks, and months between two dates for projects, travel, and deadlines. Free ToolVera date difference tool.
Read guideGet exact age in years, months, and days from a birth date. Free browser age calculator from ToolVera — no signup.
Read guideFind sale price, discount amount, and percent off without mental math. Free browser discount calculator from ToolVera.
Read guideTurn JPEG photos into PNG when you need transparency-ready pixels or lossless edits — free local converter from ToolVera.
Read guideDownscale photos to exact pixel dimensions for blogs, thumbnails, and social posts — free browser image resizer from ToolVera.
Read guideEstimate entropy and spot weak patterns before you save a password. Free browser strength checker from ToolVera — nothing uploaded.
Read guideConvert Unix epoch seconds and milliseconds to readable dates — and back — with ToolVera’s free browser timestamp converter.
Read guideLearn when to percent-encode query strings and paths, then encode or decode safely in your browser with ToolVera.
Read guideCatch trailing commas, bad quotes, and broken braces instantly. Free browser JSON validator from ToolVera — no uploads required.
Read guideDeduplicate lists, emails, and log lines in your browser. Keep first occurrence or unique values only — free ToolVera tool.
Read guideSwitch between sentence case, Title Case, UPPERCASE, lowercase, and camelCase in one click. Free browser case converter from ToolVera.
Read guideCount characters, words, and bytes before you hit platform limits — free browser tool for bios, ads, and meta descriptions. From ToolVera.
Read guideLearn how to pretty-print and validate JSON in your browser with free tools — no uploads, no signup. From ToolVera.
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