Free tools
Free tools for support, QA, and developers
Calculators, device tests, debugging utilities, and QA templates. Always free, no sign-up required.
Open source on GitHubPlan, measure, and respond better. Calculators and generators for support teams.
- Team healthBurnout Risk CalculatorAssess your team’s burnout risk across workload, complexity, support, and environment, with recommendations to improve team health.
- ProductivityEmail Template GeneratorGenerate customer support email templates across 12 scenarios and 4 tones. Copy and customize in seconds.
- MetricsFirst Response Time CalculatorCalculate your FRT, compare it with industry benchmarks, and see how to respond faster.
- MetricsSupport SLA CalculatorWork out the team size you need for your ticket volume and SLA targets.
- MetricsNPS CalculatorCalculate your Net Promoter Score from counts or raw 0–10 scores, with the margin of error.
- MetricsCSAT CalculatorCalculate your customer satisfaction score from 1–5 ratings, with the margin of error.
Check your devices. Camera, microphone, audio, and input tests in your browser.
- EquipmentWebcam & Microphone TestCheck your camera and microphone before you record a video or join a call.
- EquipmentMic TestCheck your microphone with a live level meter and record 5 seconds to play back.
- EquipmentSpeaker & Headphone TestPlay left, right, and stereo test tones and a 20 Hz–20 kHz sweep.
- EquipmentKeyboard TesterPress every key on a full keyboard layout to find dead, stuck, or double-typing keys.
- EquipmentMouse TestTest every mouse button, catch accidental double-clicks, and check the scroll wheel.
- EquipmentDead Pixel TestCycle full-screen colors to spot dead pixels, stuck pixels, and backlight bleed.
- EquipmentTouch Screen TestDraw with several fingers to check multi-touch and find dead zones.
Debug faster. Decoders, formatters, and inspectors for bug reports.
- Support detailsWhat Is My BrowserSee your browser, OS, user agent, screen, and viewport, then copy them or share a link with support.
- DebuggingHAR File AnalyzerFind failed and slow requests in a HAR file, inspect headers and timings, and download a copy without cookies or tokens.
- FormattersJSON Formatter & ValidatorFormat, minify, and validate JSON with the exact error line and column, sorted keys, and a tree view.
- EncodingBase64 Encode & DecodeEncode and decode Base64 with UTF-8 support, URL-safe base64url, and file-to-data-URL conversion.
- EncodingURL Encoder & DecoderPercent-encode or decode text and break any URL into host, path, and decoded query parameters.
- TimeUnix Timestamp ConverterConvert epoch timestamps to readable dates and back, in seconds or milliseconds, in any time zone.
- AuthJWT DecoderDecode a JSON Web Token’s header and claims, check expiry, and verify HMAC signatures locally.
- GeneratorsUUID GeneratorGenerate v4 or time-ordered v7 UUIDs in bulk, and inspect any UUID or GUID.
- DebuggingDiff CheckerCompare two texts or JSON documents side by side and see every added and removed line.
- DebuggingUser Agent ParserParse any User-Agent string into browser, engine, OS, device type, and bot.
- Debuggingcurl ConverterConvert curl commands to JavaScript fetch, Node axios, Python requests, Go, or PHP.
- TimeCron Expression GeneratorBuild and explain cron schedules in plain English and see the next run times.
- ConvertersNumber Base ConverterConvert between binary, octal, decimal, hex, and any base from 2 to 36.
- ConvertersHex to Decimal ConverterConvert hex to decimal and back, with signed 32-bit and 64-bit readings.
- ConvertersBinary to Decimal ConverterConvert binary to decimal and decimal to binary, with two’s complement.
- ConvertersColor ConverterConvert colors between HEX, RGB, HSL, HSV, and OKLCH, and check WCAG contrast.
- ConvertersPX to REM ConverterConvert px to rem and rem to px at any root font size.
- ConvertersJSON to CSV ConverterConvert JSON to CSV and back, with nested objects flattened into columns.
- ConvertersXML to JSON ConverterConvert XML to JSON and JSON to XML, with attributes and arrays handled.
- ViewersCSV ViewerOpen a CSV file as a sortable, searchable table with column stats.
- FormattersSQL FormatterBeautify SQL with one clause per line and indented subqueries, or minify it.
- TestersRegex TesterTest JavaScript regular expressions with live highlighting, groups, and a replace preview.
- EncodingHash GeneratorGet MD5, SHA-256, and SHA-512 hashes and HMACs for text or files, and verify checksums.
- GeneratorsRandom String GeneratorGenerate secure random strings, tokens, and keys with custom character sets.
Convert and resize images. Screenshots and images, processed in your browser.
- ConvertWebP to PNG ConverterConvert WebP images to PNG in your browser, in batches, with transparency kept.
- ConvertPNG & JPG to WebP ConverterConvert PNG and JPG to smaller WebP files with adjustable quality.
- ConvertSVG to PNG ConverterRender SVG files as sharp PNGs at 1x, 2x, 4x, or any width.
- ResizeImage ResizerResize images by pixels, percentage, or preset, one at a time or in batches.
- EncodeImage to Base64 ConverterEncode images as Base64 data URLs, CSS, or HTML, or decode Base64 back to an image.
- InspectSVG ViewerPreview, inspect, and minify SVG code, then download it as SVG or PNG.
Test with less setup. Test data, templates, and checklists for QA.
- PaymentsTest Credit Card NumbersStripe, Braintree, and Adyen test cards for success, decline, and 3D Secure scenarios, with a Luhn checker.
- Test dataTest Data GeneratorGenerate up to 1,000 rows of fake names, emails, and addresses as JSON, CSV, or SQL, plus edge-case strings.
- TemplatesTest Case TemplateFill in a test case, test plan, or user story with Given/When/Then criteria and export it.
- TriageBug Severity MatrixPick impact, reach, and workaround to get a suggested severity and P0–P4 priority.
- TemplatesBug Report TemplateBuild a structured bug report with your browser details filled in, for Jira, GitHub, or Markdown.
Built by the Screendesk team. For everyone who troubleshoots.
Free and open source
Every tool is free, with no limits. The code is open source on GitHub.
No sign-up required
Start using any tool right away. No account, no email verification.
Private by default
Tools run in your browser. Files, logs, and tokens you paste are never uploaded.
Actionable insights
Get specific, practical recommendations you can put in place right away.