LOCAL TOOLKIT

Get files ready.
Keep them private.

Explore nine image tools, ten text tools, four audio tools and five video tools that run in your browser.

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Files stay on your device
LOCAL TOOLKIT
Works on desktop and phone

CATEGORIES

One toolbox, four categories

Image, text, audio and video tools are available now.

Image tools

Compress, convert, crop, resize, watermark, clean metadata and prepare image regions or favicons.

Text tools

Clean, compare and convert text, format JSON, generate URL slugs and encode URL or Base64 data.

Audio tools

Trim, normalize, reverse and merge short audio clips in your browser.

Video tools

Capture frames, make contact sheets or GIFs, and extract audio from short videos.

AVAILABLE NOW

Start with a small task

One tool, one clear job. No account and no upload.

28 tools

Compress images

Reduce JPG, PNG and WebP file sizes in your browser.

JPG · PNG · WebPOpen tool

Convert images

Convert JPG, PNG and WebP images without uploading them, with a background color for JPG results.

JPG · PNG · WebPOpen tool

Crop images

Crop one JPG, PNG or WebP image to a fixed ratio without uploading it.

JPG · PNG · WebPOpen tool

Resize images

Scale images by width, height or percentage in your browser.

JPG · PNG · WebPOpen tool

Watermark images

Add the same text watermark to a batch of images without uploading them.

JPG · PNG · WebPOpen tool

Images to PDF

Combine JPG, PNG and WebP images into one PDF without uploading them.

JPG · PNG · WebP → PDFOpen tool

Clean text

Trim line edges, remove blank lines or drop duplicate lines without uploading your text.

Plain textOpen tool

Count text

Count characters, lines, non-whitespace characters and UTF-8 bytes as you type.

Characters · lines · UTF-8Open tool

Format JSON

Format, validate or minify JSON without sending the content anywhere.

Change text case

Convert text to UPPER CASE, lower case or Title Case without uploading it.

UPPER · lower · TitleOpen tool

Encode or decode URL

Encode text for a URL component or decode percent-encoded text in your browser.

URL componentOpen tool

Encode or decode Base64

Encode UTF-8 text to Base64 or decode Base64 back to text. This is encoding, not encryption.

UTF-8 · Base64Open tool

Trim audio

Trim a short audio clip, preview the selection and export 16-bit PCM WAV without uploading it.

MP3 · WAV · OGG · M4A → WAVOpen tool

Extract video frame

Inspect a short video and save a frame as a PNG image without uploading it.

MP4 · WebM · MOV → PNGOpen tool

Compare text

Compare two text versions line by line in your browser.

Plain textOpen tool

Find and replace text

Replace literal text or regular-expression matches locally.

Plain text · optional regexOpen tool

Convert CSV and JSON

Convert CSV rows and JSON objects in this browser tab.

CSV ↔ JSONOpen tool

Generate URL slugs

Turn a title into a clean URL slug using local text processing.

URL slugOpen tool

Remove image metadata

Re-encode images in your browser to remove embedded EXIF and GPS metadata.

JPG · PNG · WebP → re-encoded imageOpen tool

Favicon generator

Create a downloadable set of common PNG favicon sizes from one image.

JPG · PNG · WebP → PNG icon bundleOpen tool

Redact an image region

Select an image area and cover it with pixelation or an opaque color locally.

JPG · PNG · WebPOpen tool

Normalize audio peak

Adjust a short audio clip to a consistent peak level and export WAV locally.

MP3 · WAV · OGG · M4A → WAVOpen tool

Reverse audio

Reverse a short audio clip in your browser and save it as WAV.

MP3 · WAV · OGG · M4A → WAVOpen tool

Merge audio clips

Join compatible short audio clips in order and export one WAV file.

MP3 · WAV · OGG · M4A → WAVOpen tool

Extract video frames

Save a small batch of PNG frames from a short video locally.

MP4 · WebM · MOV → PNG ZIPOpen tool

Create a video contact sheet

Create a labeled PNG sheet of evenly spaced frames from a video.

MP4 · WebM · MOV → PNGOpen tool

Convert a short video to GIF

Convert up to 10 seconds of browser-decodable video into an animated GIF locally.

MP4 · WebM · MOV → GIFOpen tool

Extract audio from video

Extract a supported video audio track and save it as PCM WAV locally.

MP4 · WebM · MOV → WAVOpen tool

Browse all tools

PRIVACY BY DESIGN

Your content belongs to you.

Selected files are processed in your browser. PixelKit does not upload them to a file-processing server.

Read the privacy note

Local by default

File contents stay in the current tab and are cleared when you leave.

Clear limits

Formats, file counts and memory guidance are shown before you start.

Useful guidance

Practical guides explain the trade-offs behind each task and link to the tool it describes.

Guides

Image, text, audio and video file preparation guides

Practical guides on JPG, PNG and WebP, batch image runs, text comparison, CSV data, audio edits and video frames. Each guide links to the free tool it covers.

JPG vs PNG vs WebP: which image format to use

Decide by what the image contains: photos, flat graphics with text and transparency each point to a different format.

Prepare a CSV for Excel without broken columns

Delimiter, quotes, empty fields and line endings decide whether a CSV opens cleanly; fix them before the data reaches the spreadsheet.

Audio editing order: trim, normalize, then merge

Editing short clips is mostly about choosing the order: loudness changes after trimming, and merging only makes sense at matching formats.

How to pick a video frame for a thumbnail

Frames in motion blur, mid-blink or at a resolution above the source are common misses; a contact sheet makes the choice obvious.