All Tools
Search Utilumo's browser-based tools by task or category. Each tool opens directly, runs without an account, and is designed for local-first work whenever the browser can do the job.
169 tools
Images
Compress, convert, resize, clean, and protect images locally.
Image CompressorCompress JPG, PNG, and WebP locally.Compress JPG, PNG, and WebPImage ResizerResize JPG, PNG, and WebP locally.Resize JPG, PNG, and WebPImage ConverterConvert common image formats locally.Convert common image formatsRemove EXIFRemove image metadata locally.Remove image metadataImage Color PickerPick colors from images locally.Pick colors from imagesView all image tools17 tools in this category.View all
Merge, split, rotate, and prepare PDFs with less friction.
Merge PDFCombine PDF files and page ranges.Combine PDF files and page rangesCompress PDFOptimize PDF size locally.Optimize PDF sizeSplit PDFSplit PDFs into multiple parts locally.Split PDFs into multiple partsImages to PDFConvert images to PDF locally.Convert images to PDFRemove PDF MetadataRemove PDF metadata locally.Remove PDF metadataView all PDF tools10 tools in this category.View all
Developer
Format, validate, decode, generate, and inspect data.
JSON FormatterFormat, validate, and sort JSON locally.Format, validate, and sort JSONJWT DecoderDecode JWTs locally.Decode JWTsRegex TesterTest regex matches and replacements locally.Test regex matches and replacementscURL GeneratorGenerate cURL commands locally.Generate cURL commandsHTTP Header InspectorInspect response headers and security signals locally.Open HTTP Header InspectorView all developer tools52 tools in this category.View all
Text
Count, clean, compare, convert, and reshape writing.
Word CounterCount words and reading time locally.Count words and reading timeCharacter CounterCount characters, code units, and bytes locally.Open Character CounterCase ConverterConvert text casing locally.Convert text casingSlug GeneratorCreate SEO-friendly slugs locally.Create SEO-friendly slugsRemove Duplicate LinesRemove duplicate lines locally.Remove duplicate linesView all text tools8 tools in this category.View all
Calculator
Fast everyday calculators for work, money, dates, and ratios.
Aspect Ratio CalculatorCalculate image and screen ratios locally.Calculate image and screen ratiosColor Contrast CheckerCheck WCAG color contrast locally.Check WCAG color contrastPercentage CalculatorCalculate percentages locally.Calculate percentagesBMI CalculatorCalculate adult BMI locally.Calculate adult BMIAge CalculatorCalculate age between dates locally.Calculate age between datesView all calculator tools11 tools in this category.View all
Privacy Tools
Hide sensitive details and remove metadata before sharing.
Pixel FacePixelate faces and license plates locally.Pixelate faces and license platesBlur FacesBlur faces and license plates locally.Blur faces and license platesScreenshot Privacy CleanerClean sensitive screenshot details locally.Clean sensitive screenshot detailsPassword GeneratorGenerate strong passwords locally.Generate strong passwordsText RedactorRedact sensitive text locally.Redact sensitive textView all privacy tools5 tools in this category.View all
Browser
Inspect URLs, sessions, viewport details, and browser data safely.
URL ParserInspect and clean URLs locally.Inspect and clean URLsURL CleanerRemove URL tracking parameters locally.Remove URL tracking parametersYour Device, ExactlyInspect your device and browser locally.Inspect your device and browserQuery Param BuilderBuild query-string URLs locally.Build query-string URLsUTM BuilderBuild UTM campaign URLs locally.Build UTM campaign URLsView all browser tools6 tools in this category.View all
AI
Clean, count, split, and validate AI workflow data locally.
Prompt OptimizerStructure rough AI prompts locally.Structure rough AI promptsToken CounterEstimate AI prompt size and cost locally.Estimate AI prompt size and costPrompt CleanerClean AI prompts and chat text locally.Clean AI prompts and chat textPrompt DiffCompare prompt versions locally.Compare prompt versionsJSON ExtractorExtract JSON snippets from AI output locally.Extract JSON snippets from AI outputView all AI tools20 tools in this category.View all
Audio
Convert, edit, and analyze audio locally in the browser.
Audio ConverterConvert audio to MP3, WAV, or FLAC locally.Convert audio to MP3, WAV, or FLACUniversal Audio to MP3 ConverterConvert common audio formats to MP3, WAV, or FLAC.Open Universal Audio to MP3 ConverterCut AudioTrim audio to MP3, WAV, or FLAC locally.Trim audio to MP3, WAV, or FLACSplit AudioSplit audio into downloadable parts locally.Split audio into downloadable partsAudio MergeAppend audio files into one WAV locally.Append audio files into one WAVView all audio tools16 tools in this category.View all
Video
Cut, split, loop, mute, transform, compress, and convert videos locally in your browser where supported.
Remove Audio from VideoMute a video and export MP4 locally.Mute a video and export MP4Cut VideoTrim a local video to MP4.Trim a local video to MP4Split VideoSplit a video into MP4 parts locally.Split a video into MP4 partsLoop VideoRepeat a video into a looped MP4.Repeat a video into a looped MP4Add Audio to VideoAdd custom audio to MP4 locally.Add custom audio to MP4View all video tools8 tools in this category.View all
Creator
Prepare titles, thumbnails, descriptions, captions, and social image exports.
QR Code ReaderRead a QR image before opening its link.Open QR Code ReaderYouTube Description FormatterFormat YouTube descriptions.Format YouTube descriptionsYouTube Chapters GeneratorGenerate YouTube chapters locally.Generate YouTube chaptersTranscript to YouTube ChaptersCreate YouTube chapters from transcripts locally.Open Transcript to YouTube ChaptersTitle ShortenerShorten titles for platforms.Shorten titles for platformsView all creator tools12 tools in this category.View all
Productivity
Timers, planning helpers, and lightweight work utilities.
ICS Calendar MergerMerge .ics calendars locally.Merge .ics calendarsFocus TimerRun focused work and break sessions locally.Run focused work and break sessionsMeeting Cost CalculatorCalculate meeting cost and yearly time locally.Open Meeting Cost CalculatorPomodoro TimerRun a Pomodoro focus timer locally.Run a Pomodoro focus timerView all productivity tools4 tools in this category.View all